./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/triangular-longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:08:54,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:08:54,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:08:54,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:08:54,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:08:54,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:08:54,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:08:54,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:08:54,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:08:54,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:08:54,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:08:54,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:08:54,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:08:54,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:08:54,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:08:54,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:08:54,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:08:54,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:08:54,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:08:54,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:08:54,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:08:54,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:08:54,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:08:54,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:08:54,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:08:54,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:08:54,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:08:54,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:08:54,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:08:54,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:08:54,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:08:54,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:08:54,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:08:54,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:08:54,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:08:54,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:08:54,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:08:54,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:08:54,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:08:54,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:08:54,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:08:54,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:08:54,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:08:54,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:08:54,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:08:54,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:08:54,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:08:54,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:08:54,895 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:08:54,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:08:54,896 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:08:54,896 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:08:54,896 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:08:54,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:08:54,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:08:54,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:08:54,897 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:08:54,897 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:08:54,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:08:54,898 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:08:54,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:08:54,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:08:54,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:08:54,899 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:08:54,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:08:54,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:08:54,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:08:54,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:08:54,900 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:08:54,900 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:08:54,900 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:08:54,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:08:54,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:08:54,901 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:08:54,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:08:54,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:08:54,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:08:54,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:54,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:08:54,902 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:08:54,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:08:54,902 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:08:54,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:08:54,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:08:54,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2022-11-19 08:08:55,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:08:55,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:08:55,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:08:55,230 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:08:55,231 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:08:55,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread/triangular-longer-2.i [2022-11-19 08:08:55,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/ca8dbd22d/def9ad85c38d4e42b91aad57780bc661/FLAG4e6c72f56 [2022-11-19 08:08:55,885 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:08:55,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/sv-benchmarks/c/pthread/triangular-longer-2.i [2022-11-19 08:08:55,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/ca8dbd22d/def9ad85c38d4e42b91aad57780bc661/FLAG4e6c72f56 [2022-11-19 08:08:56,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/ca8dbd22d/def9ad85c38d4e42b91aad57780bc661 [2022-11-19 08:08:56,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:08:56,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:08:56,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:56,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:08:56,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:08:56,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed183f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56, skipping insertion in model container [2022-11-19 08:08:56,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:08:56,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:08:56,733 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-11-19 08:08:56,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:56,750 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:08:56,813 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-11-19 08:08:56,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:08:56,867 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:08:56,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56 WrapperNode [2022-11-19 08:08:56,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:08:56,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:56,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:08:56,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:08:56,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,934 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-11-19 08:08:56,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:08:56,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:08:56,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:08:56,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:08:56,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:56,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:08:56,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:08:56,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:08:56,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:08:56,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (1/1) ... [2022-11-19 08:08:57,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:08:57,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:08:57,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:08:57,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:08:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-19 08:08:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-19 08:08:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-19 08:08:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-19 08:08:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:08:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:08:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:08:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:08:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:08:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:08:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:08:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:08:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:08:57,087 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:08:57,291 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:08:57,293 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:08:57,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:08:57,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:08:57,482 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:08:57,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:57 BoogieIcfgContainer [2022-11-19 08:08:57,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:08:57,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:08:57,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:08:57,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:08:57,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:08:56" (1/3) ... [2022-11-19 08:08:57,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532be76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:57, skipping insertion in model container [2022-11-19 08:08:57,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:56" (2/3) ... [2022-11-19 08:08:57,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532be76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:08:57, skipping insertion in model container [2022-11-19 08:08:57,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:57" (3/3) ... [2022-11-19 08:08:57,497 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2022-11-19 08:08:57,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:08:57,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 08:08:57,517 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:08:57,597 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:08:57,649 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:08:57,667 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 166 flow [2022-11-19 08:08:57,672 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 166 flow [2022-11-19 08:08:57,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 166 flow [2022-11-19 08:08:57,722 INFO L130 PetriNetUnfolder]: 5/76 cut-off events. [2022-11-19 08:08:57,722 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:08:57,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 5/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-19 08:08:57,731 INFO L119 LiptonReduction]: Number of co-enabled transitions 1298 [2022-11-19 08:09:01,038 INFO L134 LiptonReduction]: Checked pairs total: 1234 [2022-11-19 08:09:01,038 INFO L136 LiptonReduction]: Total number of compositions: 78 [2022-11-19 08:09:01,049 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 20 transitions, 50 flow [2022-11-19 08:09:01,075 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52 states, 46 states have (on average 2.760869565217391) internal successors, (127), 51 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:09:01,097 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66ceb703, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:09:01,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 08:09:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 46 states have (on average 2.760869565217391) internal successors, (127), 51 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:09:01,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:01,104 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:09:01,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash 307, now seen corresponding path program 1 times [2022-11-19 08:09:01,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:01,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224367052] [2022-11-19 08:09:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:01,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:01,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:01,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224367052] [2022-11-19 08:09:01,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224367052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:01,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:01,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:09:01,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345919166] [2022-11-19 08:09:01,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:01,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:09:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:09:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:01,284 INFO L87 Difference]: Start difference. First operand has 52 states, 46 states have (on average 2.760869565217391) internal successors, (127), 51 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:01,337 INFO L93 Difference]: Finished difference Result 50 states and 125 transitions. [2022-11-19 08:09:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:09:01,339 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 08:09:01,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:01,352 INFO L225 Difference]: With dead ends: 50 [2022-11-19 08:09:01,352 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 08:09:01,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:01,358 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:01,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:09:01,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 08:09:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-19 08:09:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 2.717391304347826) internal successors, (125), 49 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 125 transitions. [2022-11-19 08:09:01,406 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 125 transitions. Word has length 1 [2022-11-19 08:09:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:01,406 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 125 transitions. [2022-11-19 08:09:01,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 125 transitions. [2022-11-19 08:09:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:09:01,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:01,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:09:01,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:09:01,408 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:01,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:01,409 INFO L85 PathProgramCache]: Analyzing trace with hash 302510, now seen corresponding path program 1 times [2022-11-19 08:09:01,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:01,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168269684] [2022-11-19 08:09:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:01,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:01,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:01,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168269684] [2022-11-19 08:09:01,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168269684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:01,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:01,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:01,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137844058] [2022-11-19 08:09:01,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:01,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:01,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:01,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:01,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:01,707 INFO L87 Difference]: Start difference. First operand 50 states and 125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:01,750 INFO L93 Difference]: Finished difference Result 47 states and 119 transitions. [2022-11-19 08:09:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 08:09:01,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:01,753 INFO L225 Difference]: With dead ends: 47 [2022-11-19 08:09:01,753 INFO L226 Difference]: Without dead ends: 47 [2022-11-19 08:09:01,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:01,757 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:01,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:09:01,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-19 08:09:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-19 08:09:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 2.7045454545454546) internal successors, (119), 46 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 119 transitions. [2022-11-19 08:09:01,774 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 119 transitions. Word has length 3 [2022-11-19 08:09:01,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:01,774 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 119 transitions. [2022-11-19 08:09:01,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,775 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 119 transitions. [2022-11-19 08:09:01,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:09:01,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:01,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:09:01,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:09:01,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:01,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:01,777 INFO L85 PathProgramCache]: Analyzing trace with hash 302511, now seen corresponding path program 1 times [2022-11-19 08:09:01,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:01,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356694466] [2022-11-19 08:09:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:01,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:01,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:01,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356694466] [2022-11-19 08:09:01,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356694466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:01,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:01,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14255396] [2022-11-19 08:09:01,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:01,931 INFO L87 Difference]: Start difference. First operand 47 states and 119 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:01,959 INFO L93 Difference]: Finished difference Result 44 states and 113 transitions. [2022-11-19 08:09:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 08:09:01,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:01,960 INFO L225 Difference]: With dead ends: 44 [2022-11-19 08:09:01,961 INFO L226 Difference]: Without dead ends: 44 [2022-11-19 08:09:01,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:01,962 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:01,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:09:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-19 08:09:01,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-19 08:09:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 2.6904761904761907) internal successors, (113), 43 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 113 transitions. [2022-11-19 08:09:01,968 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 113 transitions. Word has length 3 [2022-11-19 08:09:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:01,969 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 113 transitions. [2022-11-19 08:09:01,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 113 transitions. [2022-11-19 08:09:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:09:01,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:01,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:09:01,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:09:01,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:01,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:01,971 INFO L85 PathProgramCache]: Analyzing trace with hash 422310854, now seen corresponding path program 1 times [2022-11-19 08:09:01,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:01,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407535136] [2022-11-19 08:09:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:02,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:02,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407535136] [2022-11-19 08:09:02,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407535136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:02,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:02,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056405590] [2022-11-19 08:09:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:02,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:02,231 INFO L87 Difference]: Start difference. First operand 44 states and 113 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:02,260 INFO L93 Difference]: Finished difference Result 35 states and 86 transitions. [2022-11-19 08:09:02,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:02,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 08:09:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:02,262 INFO L225 Difference]: With dead ends: 35 [2022-11-19 08:09:02,264 INFO L226 Difference]: Without dead ends: 35 [2022-11-19 08:09:02,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:02,267 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:02,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:09:02,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-19 08:09:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-19 08:09:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 34 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 86 transitions. [2022-11-19 08:09:02,279 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 86 transitions. Word has length 6 [2022-11-19 08:09:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:02,279 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 86 transitions. [2022-11-19 08:09:02,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 86 transitions. [2022-11-19 08:09:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:09:02,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:02,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:09:02,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:09:02,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash 422310826, now seen corresponding path program 1 times [2022-11-19 08:09:02,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:02,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900152835] [2022-11-19 08:09:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:02,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:02,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900152835] [2022-11-19 08:09:02,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900152835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:02,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:02,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:02,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533222482] [2022-11-19 08:09:02,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:02,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:02,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:02,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:02,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:02,444 INFO L87 Difference]: Start difference. First operand 35 states and 86 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:02,524 INFO L93 Difference]: Finished difference Result 60 states and 143 transitions. [2022-11-19 08:09:02,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:02,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 08:09:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:02,526 INFO L225 Difference]: With dead ends: 60 [2022-11-19 08:09:02,526 INFO L226 Difference]: Without dead ends: 54 [2022-11-19 08:09:02,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:02,527 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:02,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-19 08:09:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2022-11-19 08:09:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 2.4489795918367347) internal successors, (120), 49 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 120 transitions. [2022-11-19 08:09:02,534 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 120 transitions. Word has length 6 [2022-11-19 08:09:02,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:02,534 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 120 transitions. [2022-11-19 08:09:02,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 120 transitions. [2022-11-19 08:09:02,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:02,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:02,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:02,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:09:02,536 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:02,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:02,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2123779961, now seen corresponding path program 1 times [2022-11-19 08:09:02,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:02,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406609156] [2022-11-19 08:09:02,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:02,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:02,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:02,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406609156] [2022-11-19 08:09:02,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406609156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:02,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:02,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:02,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294654500] [2022-11-19 08:09:02,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:02,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:02,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:02,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:02,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:02,646 INFO L87 Difference]: Start difference. First operand 50 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:02,712 INFO L93 Difference]: Finished difference Result 56 states and 134 transitions. [2022-11-19 08:09:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:02,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:02,716 INFO L225 Difference]: With dead ends: 56 [2022-11-19 08:09:02,716 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 08:09:02,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:02,721 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:02,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:09:02,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 08:09:02,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2022-11-19 08:09:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 2.4864864864864864) internal successors, (92), 37 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 92 transitions. [2022-11-19 08:09:02,735 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 92 transitions. Word has length 8 [2022-11-19 08:09:02,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:02,736 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 92 transitions. [2022-11-19 08:09:02,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,736 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 92 transitions. [2022-11-19 08:09:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:02,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:02,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:02,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:09:02,738 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash 2112935076, now seen corresponding path program 1 times [2022-11-19 08:09:02,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:02,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817687691] [2022-11-19 08:09:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:02,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:02,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:02,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817687691] [2022-11-19 08:09:02,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817687691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:02,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:02,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:02,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340863841] [2022-11-19 08:09:02,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:02,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:02,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:02,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:02,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:02,896 INFO L87 Difference]: Start difference. First operand 38 states and 92 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:02,984 INFO L93 Difference]: Finished difference Result 64 states and 150 transitions. [2022-11-19 08:09:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:02,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:02,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:02,985 INFO L225 Difference]: With dead ends: 64 [2022-11-19 08:09:02,985 INFO L226 Difference]: Without dead ends: 50 [2022-11-19 08:09:02,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:09:02,987 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:02,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:02,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-19 08:09:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2022-11-19 08:09:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 2.4390243902439024) internal successors, (100), 41 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 100 transitions. [2022-11-19 08:09:02,995 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 100 transitions. Word has length 8 [2022-11-19 08:09:02,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:02,995 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 100 transitions. [2022-11-19 08:09:02,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 100 transitions. [2022-11-19 08:09:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:02,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:02,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:02,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:09:02,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:03,000 INFO L85 PathProgramCache]: Analyzing trace with hash 789475135, now seen corresponding path program 1 times [2022-11-19 08:09:03,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:03,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399664480] [2022-11-19 08:09:03,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:03,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:03,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:03,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:03,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399664480] [2022-11-19 08:09:03,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399664480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:03,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:03,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:03,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985758878] [2022-11-19 08:09:03,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:03,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:03,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:03,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:03,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:03,140 INFO L87 Difference]: Start difference. First operand 42 states and 100 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:03,238 INFO L93 Difference]: Finished difference Result 58 states and 136 transitions. [2022-11-19 08:09:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:09:03,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:03,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:03,239 INFO L225 Difference]: With dead ends: 58 [2022-11-19 08:09:03,239 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 08:09:03,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:09:03,240 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:03,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 0 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:03,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 08:09:03,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2022-11-19 08:09:03,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 2.4324324324324325) internal successors, (90), 37 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 90 transitions. [2022-11-19 08:09:03,244 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 90 transitions. Word has length 10 [2022-11-19 08:09:03,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:03,245 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 90 transitions. [2022-11-19 08:09:03,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:03,245 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 90 transitions. [2022-11-19 08:09:03,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:03,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:03,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:03,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:09:03,247 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash 789503965, now seen corresponding path program 2 times [2022-11-19 08:09:03,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:03,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003226641] [2022-11-19 08:09:03,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:03,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:03,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:03,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003226641] [2022-11-19 08:09:03,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003226641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:03,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:03,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:03,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404721071] [2022-11-19 08:09:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:03,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:03,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:03,359 INFO L87 Difference]: Start difference. First operand 38 states and 90 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:03,483 INFO L93 Difference]: Finished difference Result 62 states and 150 transitions. [2022-11-19 08:09:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:09:03,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:03,484 INFO L225 Difference]: With dead ends: 62 [2022-11-19 08:09:03,484 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 08:09:03,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:09:03,485 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:03,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 08:09:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2022-11-19 08:09:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 2.484848484848485) internal successors, (82), 33 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 82 transitions. [2022-11-19 08:09:03,488 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 82 transitions. Word has length 10 [2022-11-19 08:09:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:03,489 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 82 transitions. [2022-11-19 08:09:03,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:03,489 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 82 transitions. [2022-11-19 08:09:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:09:03,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:03,490 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:03,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:09:03,490 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:03,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1296046935, now seen corresponding path program 3 times [2022-11-19 08:09:03,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:03,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337714481] [2022-11-19 08:09:03,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:03,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:03,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:03,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337714481] [2022-11-19 08:09:03,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337714481] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:03,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083943524] [2022-11-19 08:09:03,618 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:03,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:03,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:09:03,716 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:03,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:03,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:09:03,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:03,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:04,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:04,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083943524] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:04,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1585384138] [2022-11-19 08:09:04,071 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:09:04,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:04,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-19 08:09:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244376846] [2022-11-19 08:09:04,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:04,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:09:04,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:09:04,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:09:04,075 INFO L87 Difference]: Start difference. First operand 34 states and 82 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:04,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:04,450 INFO L93 Difference]: Finished difference Result 88 states and 211 transitions. [2022-11-19 08:09:04,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:09:04,451 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:09:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:04,452 INFO L225 Difference]: With dead ends: 88 [2022-11-19 08:09:04,452 INFO L226 Difference]: Without dead ends: 58 [2022-11-19 08:09:04,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=213, Invalid=437, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:09:04,453 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 102 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:04,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 0 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-19 08:09:04,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2022-11-19 08:09:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 2.4705882352941178) internal successors, (126), 51 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 126 transitions. [2022-11-19 08:09:04,464 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 126 transitions. Word has length 11 [2022-11-19 08:09:04,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:04,464 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 126 transitions. [2022-11-19 08:09:04,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:04,465 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 126 transitions. [2022-11-19 08:09:04,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:09:04,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:04,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:04,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:09:04,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:04,673 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:04,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:04,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1494986244, now seen corresponding path program 4 times [2022-11-19 08:09:04,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:04,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961043463] [2022-11-19 08:09:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:04,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:04,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:04,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961043463] [2022-11-19 08:09:04,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961043463] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:04,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503209350] [2022-11-19 08:09:04,859 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:09:04,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:04,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:04,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:04,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:09:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:04,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:04,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:05,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:05,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:05,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503209350] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:05,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [204063150] [2022-11-19 08:09:05,192 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:09:05,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:05,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-19 08:09:05,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524289661] [2022-11-19 08:09:05,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:05,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 08:09:05,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:05,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 08:09:05,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:09:05,199 INFO L87 Difference]: Start difference. First operand 52 states and 126 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:05,665 INFO L93 Difference]: Finished difference Result 113 states and 271 transitions. [2022-11-19 08:09:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-19 08:09:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:09:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:05,666 INFO L225 Difference]: With dead ends: 113 [2022-11-19 08:09:05,666 INFO L226 Difference]: Without dead ends: 75 [2022-11-19 08:09:05,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=668, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:09:05,668 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 139 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:05,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 0 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:05,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-19 08:09:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 45. [2022-11-19 08:09:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 44 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 108 transitions. [2022-11-19 08:09:05,678 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 108 transitions. Word has length 12 [2022-11-19 08:09:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:05,678 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 108 transitions. [2022-11-19 08:09:05,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:05,679 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 108 transitions. [2022-11-19 08:09:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:09:05,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:05,679 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:05,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:05,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:05,885 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:05,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:05,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1207968382, now seen corresponding path program 5 times [2022-11-19 08:09:05,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:05,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529421146] [2022-11-19 08:09:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:06,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:06,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529421146] [2022-11-19 08:09:06,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529421146] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:06,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622857371] [2022-11-19 08:09:06,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:06,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:06,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:06,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:06,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:09:06,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 08:09:06,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:06,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-19 08:09:06,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:06,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:06,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622857371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:06,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1854554301] [2022-11-19 08:09:06,442 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:09:06,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:06,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2022-11-19 08:09:06,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144862569] [2022-11-19 08:09:06,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:06,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 08:09:06,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:06,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 08:09:06,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2022-11-19 08:09:06,444 INFO L87 Difference]: Start difference. First operand 45 states and 108 transitions. Second operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:07,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:07,397 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2022-11-19 08:09:07,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-19 08:09:07,398 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 08:09:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:07,398 INFO L225 Difference]: With dead ends: 140 [2022-11-19 08:09:07,399 INFO L226 Difference]: Without dead ends: 84 [2022-11-19 08:09:07,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=914, Invalid=2056, Unknown=0, NotChecked=0, Total=2970 [2022-11-19 08:09:07,400 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 276 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:07,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:09:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-19 08:09:07,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2022-11-19 08:09:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 2.476923076923077) internal successors, (161), 65 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 161 transitions. [2022-11-19 08:09:07,405 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 161 transitions. Word has length 16 [2022-11-19 08:09:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:07,405 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 161 transitions. [2022-11-19 08:09:07,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 161 transitions. [2022-11-19 08:09:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:09:07,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:07,411 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:07,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:07,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-19 08:09:07,617 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:07,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1349360727, now seen corresponding path program 6 times [2022-11-19 08:09:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:07,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357848225] [2022-11-19 08:09:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:07,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:07,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357848225] [2022-11-19 08:09:07,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357848225] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:07,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156111930] [2022-11-19 08:09:07,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:07,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:07,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:07,950 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:07,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:09:08,049 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:08,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:08,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 08:09:08,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:08,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:08,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156111930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:08,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [466772424] [2022-11-19 08:09:08,487 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:09:08,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:08,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2022-11-19 08:09:08,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712540339] [2022-11-19 08:09:08,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:08,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-19 08:09:08,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:08,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-19 08:09:08,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-11-19 08:09:08,490 INFO L87 Difference]: Start difference. First operand 66 states and 161 transitions. Second operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:09,698 INFO L93 Difference]: Finished difference Result 143 states and 349 transitions. [2022-11-19 08:09:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-19 08:09:09,699 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:09:09,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:09,703 INFO L225 Difference]: With dead ends: 143 [2022-11-19 08:09:09,703 INFO L226 Difference]: Without dead ends: 105 [2022-11-19 08:09:09,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1441 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1509, Invalid=3603, Unknown=0, NotChecked=0, Total=5112 [2022-11-19 08:09:09,711 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 297 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:09,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:09:09,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-19 08:09:09,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 65. [2022-11-19 08:09:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 2.46875) internal successors, (158), 64 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 158 transitions. [2022-11-19 08:09:09,720 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 158 transitions. Word has length 22 [2022-11-19 08:09:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:09,721 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 158 transitions. [2022-11-19 08:09:09,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:09,721 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 158 transitions. [2022-11-19 08:09:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 08:09:09,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:09,724 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:09,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:09,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 08:09:09,929 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:09,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash 286842951, now seen corresponding path program 7 times [2022-11-19 08:09:09,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:09,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445553963] [2022-11-19 08:09:09,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:09,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:10,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:09:10,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445553963] [2022-11-19 08:09:10,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445553963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:09:10,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622011422] [2022-11-19 08:09:10,432 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:09:10,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:10,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:10,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:10,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:09:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:10,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-19 08:09:10,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:10,652 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:10,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:10,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622011422] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:10,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1514383517] [2022-11-19 08:09:10,981 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:09:10,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:09:10,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 26 [2022-11-19 08:09:10,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753762642] [2022-11-19 08:09:10,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:10,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-19 08:09:10,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:09:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-19 08:09:10,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2022-11-19 08:09:10,985 INFO L87 Difference]: Start difference. First operand 65 states and 158 transitions. Second operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:12,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:12,271 INFO L93 Difference]: Finished difference Result 148 states and 363 transitions. [2022-11-19 08:09:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-19 08:09:12,273 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-19 08:09:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:12,278 INFO L225 Difference]: With dead ends: 148 [2022-11-19 08:09:12,279 INFO L226 Difference]: Without dead ends: 117 [2022-11-19 08:09:12,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 28 SyntacticMatches, 16 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1672, Invalid=3584, Unknown=0, NotChecked=0, Total=5256 [2022-11-19 08:09:12,282 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 354 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:12,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 0 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-19 08:09:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 78. [2022-11-19 08:09:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 2.4805194805194803) internal successors, (191), 77 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 191 transitions. [2022-11-19 08:09:12,295 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 191 transitions. Word has length 26 [2022-11-19 08:09:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:12,295 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 191 transitions. [2022-11-19 08:09:12,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 191 transitions. [2022-11-19 08:09:12,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:09:12,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:12,297 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:12,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:12,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:12,506 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:12,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:12,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1195312140, now seen corresponding path program 8 times [2022-11-19 08:09:12,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:09:12,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24365878] [2022-11-19 08:09:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:12,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:09:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:09:12,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:09:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:09:12,560 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:09:12,561 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:09:12,562 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-19 08:09:12,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-19 08:09:12,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-19 08:09:12,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-19 08:09:12,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-19 08:09:12,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-19 08:09:12,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-19 08:09:12,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-19 08:09:12,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:09:12,567 INFO L444 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:12,571 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:09:12,571 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:09:12,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:09:12 BasicIcfg [2022-11-19 08:09:12,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:09:12,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:09:12,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:09:12,634 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:09:12,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:57" (3/4) ... [2022-11-19 08:09:12,637 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:09:12,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:09:12,638 INFO L158 Benchmark]: Toolchain (without parser) took 16459.30ms. Allocated memory was 88.1MB in the beginning and 201.3MB in the end (delta: 113.2MB). Free memory was 51.4MB in the beginning and 68.5MB in the end (delta: -17.1MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:12,638 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:12,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.91ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 51.3MB in the beginning and 81.4MB in the end (delta: -30.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:09:12,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.50ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:09:12,639 INFO L158 Benchmark]: Boogie Preprocessor took 57.48ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:12,640 INFO L158 Benchmark]: RCFGBuilder took 490.56ms. Allocated memory is still 115.3MB. Free memory was 77.9MB in the beginning and 64.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 08:09:12,640 INFO L158 Benchmark]: TraceAbstraction took 15146.28ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 64.2MB in the beginning and 68.5MB in the end (delta: -4.3MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-11-19 08:09:12,640 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 201.3MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:09:12,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 69.0MB in the beginning and 68.9MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 683.91ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 51.3MB in the beginning and 81.4MB in the end (delta: -30.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.50ms. Allocated memory is still 115.3MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.48ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 490.56ms. Allocated memory is still 115.3MB. Free memory was 77.9MB in the beginning and 64.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 15146.28ms. Allocated memory was 115.3MB in the beginning and 201.3MB in the end (delta: 86.0MB). Free memory was 64.2MB in the beginning and 68.5MB in the end (delta: -4.3MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 201.3MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 80 PlacesBefore, 25 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 1298 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 78 TotalNumberOfCompositions, 1234 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1030, independent: 998, independent conditional: 0, independent unconditional: 998, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 842, independent: 822, independent conditional: 0, independent unconditional: 822, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 842, independent: 822, independent conditional: 0, independent unconditional: 822, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1030, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 842, unknown conditional: 0, unknown unconditional: 842] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 722]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 722. Possible FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=51, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, i=3, id1={3:0}, id2={5:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, i=3, id1={3:0}, id2={5:0}, j=6, k=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=7] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=2, k=1] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=5, k=4] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=9] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=10] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, condI=0, i=25, id1={3:0}, id2={5:0}, j=26, k=10, k=10] [L719] 0 int condJ = j >= (2*10 +6); [L721] COND TRUE 0 condI || condJ [L722] 0 reach_error() VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, argv={49:50}, condI=0, condJ=1, i=25, id1={3:0}, id2={5:0}, j=26, k=10, k=10] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 96 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 15, TraceHistogramMax: 10, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1307 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1307 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1532 IncrementalHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 226 mSolverCounterUnsat, 0 mSDtfsCounter, 1532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 97 SyntacticMatches, 24 SemanticMatches, 279 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4484 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=14, InterpolantAutomatonStates: 206, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 183 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 1129 SizeOfPredicates, 47 NumberOfNonLiveVariables, 810 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 0/387 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:09:12,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/triangular-longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:09:15,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:09:15,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:09:15,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:09:15,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:09:15,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:09:15,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:09:15,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:09:15,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:09:15,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:09:15,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:09:15,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:09:15,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:09:15,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:09:15,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:09:15,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:09:15,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:09:15,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:09:15,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:09:15,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:09:15,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:09:15,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:09:15,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:09:15,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:09:15,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:09:15,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:09:15,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:09:15,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:09:15,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:09:15,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:09:15,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:09:15,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:09:15,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:09:15,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:09:15,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:09:15,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:09:15,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:09:15,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:09:15,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:09:15,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:09:15,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:09:15,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-19 08:09:15,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:09:15,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:09:15,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:09:15,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:09:15,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:09:15,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:09:15,198 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:09:15,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:09:15,199 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:09:15,199 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:09:15,200 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:09:15,200 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:09:15,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:09:15,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:09:15,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:09:15,203 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:09:15,203 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:09:15,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:09:15,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:09:15,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:09:15,204 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:09:15,204 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:09:15,204 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:09:15,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:09:15,205 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:09:15,205 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:09:15,205 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:09:15,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:09:15,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:09:15,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:09:15,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:09:15,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:09:15,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:15,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:09:15,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:09:15,208 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:09:15,208 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:15,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:09:15,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:09:15,209 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2022-11-19 08:09:15,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:09:15,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:09:15,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:09:15,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:09:15,615 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:09:15,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread/triangular-longer-2.i [2022-11-19 08:09:15,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/09265b3ef/fc9f9539dfd84ce894bcddeffcc99db7/FLAG839e3e3da [2022-11-19 08:09:16,327 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:09:16,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/sv-benchmarks/c/pthread/triangular-longer-2.i [2022-11-19 08:09:16,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/09265b3ef/fc9f9539dfd84ce894bcddeffcc99db7/FLAG839e3e3da [2022-11-19 08:09:16,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/data/09265b3ef/fc9f9539dfd84ce894bcddeffcc99db7 [2022-11-19 08:09:16,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:09:16,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:09:16,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:16,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:09:16,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:09:16,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:16" (1/1) ... [2022-11-19 08:09:16,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ebecd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:16, skipping insertion in model container [2022-11-19 08:09:16,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:09:16" (1/1) ... [2022-11-19 08:09:16,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:09:16,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:09:17,111 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-11-19 08:09:17,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:17,132 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:09:17,196 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2022-11-19 08:09:17,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:09:17,252 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:09:17,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17 WrapperNode [2022-11-19 08:09:17,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:09:17,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:17,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:09:17,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:09:17,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,327 INFO L138 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2022-11-19 08:09:17,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:09:17,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:09:17,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:09:17,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:09:17,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:09:17,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:09:17,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:09:17,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:09:17,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (1/1) ... [2022-11-19 08:09:17,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:09:17,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:17,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:09:17,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:09:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-19 08:09:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-19 08:09:17,474 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-19 08:09:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-19 08:09:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 08:09:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:09:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:09:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:09:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:09:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:09:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 08:09:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:09:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:09:17,478 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 08:09:17,710 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:09:17,725 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:09:17,938 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:09:17,944 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:09:17,945 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:09:17,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:17 BoogieIcfgContainer [2022-11-19 08:09:17,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:09:17,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:09:17,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:09:17,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:09:17,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:09:16" (1/3) ... [2022-11-19 08:09:17,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a620b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:09:17, skipping insertion in model container [2022-11-19 08:09:17,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:09:17" (2/3) ... [2022-11-19 08:09:17,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640a620b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:09:17, skipping insertion in model container [2022-11-19 08:09:17,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:17" (3/3) ... [2022-11-19 08:09:17,957 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2022-11-19 08:09:17,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:09:17,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-19 08:09:17,976 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 08:09:18,094 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 08:09:18,139 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 08:09:18,157 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 79 transitions, 168 flow [2022-11-19 08:09:18,162 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 79 transitions, 168 flow [2022-11-19 08:09:18,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 168 flow [2022-11-19 08:09:18,229 INFO L130 PetriNetUnfolder]: 5/77 cut-off events. [2022-11-19 08:09:18,229 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 08:09:18,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 77 events. 5/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-19 08:09:18,240 INFO L119 LiptonReduction]: Number of co-enabled transitions 1298 [2022-11-19 08:09:25,681 INFO L134 LiptonReduction]: Checked pairs total: 1226 [2022-11-19 08:09:25,681 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-11-19 08:09:25,689 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 54 flow [2022-11-19 08:09:25,706 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 61 states, 55 states have (on average 2.963636363636364) internal successors, (163), 60 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:25,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:09:25,732 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1284faa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:09:25,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 08:09:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 55 states have (on average 2.963636363636364) internal successors, (163), 60 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 08:09:25,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:25,741 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 08:09:25,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash 310, now seen corresponding path program 1 times [2022-11-19 08:09:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:25,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900060903] [2022-11-19 08:09:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:25,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:25,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:25,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:25,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:09:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:25,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:09:25,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:25,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:25,869 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:25,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900060903] [2022-11-19 08:09:25,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900060903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:25,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:25,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 08:09:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976840831] [2022-11-19 08:09:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:25,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:09:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:09:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:25,907 INFO L87 Difference]: Start difference. First operand has 61 states, 55 states have (on average 2.963636363636364) internal successors, (163), 60 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:25,976 INFO L93 Difference]: Finished difference Result 59 states and 152 transitions. [2022-11-19 08:09:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:09:25,979 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 08:09:25,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:25,989 INFO L225 Difference]: With dead ends: 59 [2022-11-19 08:09:25,989 INFO L226 Difference]: Without dead ends: 59 [2022-11-19 08:09:25,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:09:25,993 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:25,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-19 08:09:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-19 08:09:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 2.7636363636363637) internal successors, (152), 58 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:26,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 152 transitions. [2022-11-19 08:09:26,035 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 152 transitions. Word has length 1 [2022-11-19 08:09:26,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:26,036 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 152 transitions. [2022-11-19 08:09:26,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 152 transitions. [2022-11-19 08:09:26,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:09:26,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:26,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:09:26,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:26,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:26,250 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:26,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:26,251 INFO L85 PathProgramCache]: Analyzing trace with hash 305457, now seen corresponding path program 1 times [2022-11-19 08:09:26,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:26,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424385788] [2022-11-19 08:09:26,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:26,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:26,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:26,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:26,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:09:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:26,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:09:26,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:26,446 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 08:09:26,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-19 08:09:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:26,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:26,489 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:26,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424385788] [2022-11-19 08:09:26,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424385788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:26,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:26,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:26,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172598547] [2022-11-19 08:09:26,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:26,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:26,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:26,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:26,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:26,493 INFO L87 Difference]: Start difference. First operand 59 states and 152 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:26,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:26,618 INFO L93 Difference]: Finished difference Result 56 states and 146 transitions. [2022-11-19 08:09:26,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:26,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 08:09:26,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:26,620 INFO L225 Difference]: With dead ends: 56 [2022-11-19 08:09:26,620 INFO L226 Difference]: Without dead ends: 56 [2022-11-19 08:09:26,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:26,622 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:26,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:26,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-19 08:09:26,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-19 08:09:26,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 53 states have (on average 2.7547169811320753) internal successors, (146), 55 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 146 transitions. [2022-11-19 08:09:26,644 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 146 transitions. Word has length 3 [2022-11-19 08:09:26,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:26,644 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 146 transitions. [2022-11-19 08:09:26,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 146 transitions. [2022-11-19 08:09:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 08:09:26,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:26,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 08:09:26,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-19 08:09:26,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:26,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:26,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash 305458, now seen corresponding path program 1 times [2022-11-19 08:09:26,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:26,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034888569] [2022-11-19 08:09:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:26,858 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:26,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:26,863 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:26,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:09:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:26,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:26,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:26,986 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:09:26,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-19 08:09:26,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:26,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:26,998 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:26,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034888569] [2022-11-19 08:09:26,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034888569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:26,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:26,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:09:26,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141557926] [2022-11-19 08:09:26,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:27,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:27,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:27,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:27,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:27,001 INFO L87 Difference]: Start difference. First operand 56 states and 146 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:27,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:27,060 INFO L93 Difference]: Finished difference Result 53 states and 140 transitions. [2022-11-19 08:09:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:27,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-19 08:09:27,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:27,062 INFO L225 Difference]: With dead ends: 53 [2022-11-19 08:09:27,062 INFO L226 Difference]: Without dead ends: 53 [2022-11-19 08:09:27,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:27,064 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:27,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-19 08:09:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-19 08:09:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 2.7450980392156863) internal successors, (140), 52 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 140 transitions. [2022-11-19 08:09:27,073 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 140 transitions. Word has length 3 [2022-11-19 08:09:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:27,074 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 140 transitions. [2022-11-19 08:09:27,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 140 transitions. [2022-11-19 08:09:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:09:27,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:27,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:09:27,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:27,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:27,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:27,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 510196290, now seen corresponding path program 1 times [2022-11-19 08:09:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:27,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941668678] [2022-11-19 08:09:27,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:27,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:27,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:27,290 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:27,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:09:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:27,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:09:27,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:27,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:27,462 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:27,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941668678] [2022-11-19 08:09:27,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941668678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:27,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:27,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:27,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630422200] [2022-11-19 08:09:27,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:27,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:27,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:27,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:27,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:27,466 INFO L87 Difference]: Start difference. First operand 53 states and 140 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:27,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:27,586 INFO L93 Difference]: Finished difference Result 106 states and 281 transitions. [2022-11-19 08:09:27,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:09:27,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 08:09:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:27,590 INFO L225 Difference]: With dead ends: 106 [2022-11-19 08:09:27,590 INFO L226 Difference]: Without dead ends: 106 [2022-11-19 08:09:27,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:27,591 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:27,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-19 08:09:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 72. [2022-11-19 08:09:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 70 states have (on average 2.757142857142857) internal successors, (193), 71 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 193 transitions. [2022-11-19 08:09:27,616 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 193 transitions. Word has length 6 [2022-11-19 08:09:27,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:27,617 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 193 transitions. [2022-11-19 08:09:27,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:27,617 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 193 transitions. [2022-11-19 08:09:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:09:27,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:27,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:27,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:27,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:27,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:27,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1363783503, now seen corresponding path program 1 times [2022-11-19 08:09:27,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:27,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899261] [2022-11-19 08:09:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:27,834 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:27,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:09:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:27,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:27,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:28,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:28,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:28,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899261] [2022-11-19 08:09:28,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:28,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:28,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:28,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269649423] [2022-11-19 08:09:28,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:28,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:28,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:28,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:28,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:28,107 INFO L87 Difference]: Start difference. First operand 72 states and 193 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:28,156 INFO L93 Difference]: Finished difference Result 71 states and 190 transitions. [2022-11-19 08:09:28,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:28,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 08:09:28,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:28,159 INFO L225 Difference]: With dead ends: 71 [2022-11-19 08:09:28,159 INFO L226 Difference]: Without dead ends: 71 [2022-11-19 08:09:28,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:28,161 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:28,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:09:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-19 08:09:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-19 08:09:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 69 states have (on average 2.753623188405797) internal successors, (190), 70 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 190 transitions. [2022-11-19 08:09:28,182 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 190 transitions. Word has length 7 [2022-11-19 08:09:28,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:28,183 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 190 transitions. [2022-11-19 08:09:28,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 190 transitions. [2022-11-19 08:09:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:28,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:28,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:28,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:28,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:28,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash -702970459, now seen corresponding path program 1 times [2022-11-19 08:09:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:28,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911450295] [2022-11-19 08:09:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:28,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:28,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:28,406 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:28,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 08:09:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:28,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:28,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:28,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:28,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:28,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911450295] [2022-11-19 08:09:28,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911450295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:28,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:28,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:28,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433398245] [2022-11-19 08:09:28,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:28,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:28,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:28,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:28,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:28,622 INFO L87 Difference]: Start difference. First operand 71 states and 190 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:28,643 INFO L93 Difference]: Finished difference Result 73 states and 197 transitions. [2022-11-19 08:09:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:28,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:28,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:28,645 INFO L225 Difference]: With dead ends: 73 [2022-11-19 08:09:28,645 INFO L226 Difference]: Without dead ends: 73 [2022-11-19 08:09:28,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:28,647 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:28,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 08:09:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-19 08:09:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-19 08:09:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 71 states have (on average 2.7746478873239435) internal successors, (197), 72 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 197 transitions. [2022-11-19 08:09:28,654 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 197 transitions. Word has length 8 [2022-11-19 08:09:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:28,655 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 197 transitions. [2022-11-19 08:09:28,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:28,655 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 197 transitions. [2022-11-19 08:09:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:28,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:28,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:28,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:28,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:28,869 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:28,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:28,870 INFO L85 PathProgramCache]: Analyzing trace with hash -702941449, now seen corresponding path program 1 times [2022-11-19 08:09:28,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:28,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41830932] [2022-11-19 08:09:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:28,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:28,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:28,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:28,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 08:09:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:28,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:09:28,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:29,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:29,054 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:29,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41830932] [2022-11-19 08:09:29,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41830932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:29,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:29,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034052862] [2022-11-19 08:09:29,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:29,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:29,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:29,057 INFO L87 Difference]: Start difference. First operand 73 states and 197 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:29,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:29,248 INFO L93 Difference]: Finished difference Result 108 states and 289 transitions. [2022-11-19 08:09:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:29,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:29,250 INFO L225 Difference]: With dead ends: 108 [2022-11-19 08:09:29,250 INFO L226 Difference]: Without dead ends: 108 [2022-11-19 08:09:29,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:29,252 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:29,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-19 08:09:29,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 66. [2022-11-19 08:09:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 64 states have (on average 2.828125) internal successors, (181), 65 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 181 transitions. [2022-11-19 08:09:29,259 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 181 transitions. Word has length 8 [2022-11-19 08:09:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:29,259 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 181 transitions. [2022-11-19 08:09:29,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 181 transitions. [2022-11-19 08:09:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:29,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:29,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:29,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:29,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:29,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:29,474 INFO L85 PathProgramCache]: Analyzing trace with hash 672332259, now seen corresponding path program 1 times [2022-11-19 08:09:29,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:29,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399382639] [2022-11-19 08:09:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:29,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:29,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:29,476 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:29,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:09:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:29,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:09:29,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:29,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:29,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:29,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399382639] [2022-11-19 08:09:29,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399382639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:29,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:29,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:29,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447146513] [2022-11-19 08:09:29,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:29,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:29,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:29,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:29,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:29,665 INFO L87 Difference]: Start difference. First operand 66 states and 181 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:29,826 INFO L93 Difference]: Finished difference Result 142 states and 377 transitions. [2022-11-19 08:09:29,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:29,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:29,831 INFO L225 Difference]: With dead ends: 142 [2022-11-19 08:09:29,831 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:09:29,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:29,832 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:29,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:09:29,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 78. [2022-11-19 08:09:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 2.9078947368421053) internal successors, (221), 77 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 221 transitions. [2022-11-19 08:09:29,849 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 221 transitions. Word has length 8 [2022-11-19 08:09:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:29,850 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 221 transitions. [2022-11-19 08:09:29,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 221 transitions. [2022-11-19 08:09:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:29,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:29,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:29,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-19 08:09:30,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:30,064 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:30,064 INFO L85 PathProgramCache]: Analyzing trace with hash 672332017, now seen corresponding path program 1 times [2022-11-19 08:09:30,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:30,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116120602] [2022-11-19 08:09:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:30,066 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 08:09:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:30,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:30,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:30,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:30,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:30,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116120602] [2022-11-19 08:09:30,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116120602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:30,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:30,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072279260] [2022-11-19 08:09:30,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:30,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:30,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:30,287 INFO L87 Difference]: Start difference. First operand 78 states and 221 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:30,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:30,304 INFO L93 Difference]: Finished difference Result 80 states and 228 transitions. [2022-11-19 08:09:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:30,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:30,306 INFO L225 Difference]: With dead ends: 80 [2022-11-19 08:09:30,306 INFO L226 Difference]: Without dead ends: 80 [2022-11-19 08:09:30,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:30,307 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:30,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:09:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-19 08:09:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-19 08:09:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 2.923076923076923) internal successors, (228), 79 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 228 transitions. [2022-11-19 08:09:30,314 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 228 transitions. Word has length 8 [2022-11-19 08:09:30,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:30,314 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 228 transitions. [2022-11-19 08:09:30,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:30,315 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 228 transitions. [2022-11-19 08:09:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:30,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:30,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:30,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:30,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:30,535 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash 672383167, now seen corresponding path program 2 times [2022-11-19 08:09:30,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:30,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135727275] [2022-11-19 08:09:30,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:30,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:30,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:30,538 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:30,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 08:09:30,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:30,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:30,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:30,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:30,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:30,768 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135727275] [2022-11-19 08:09:30,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135727275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:30,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:30,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:30,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493167419] [2022-11-19 08:09:30,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:30,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:30,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:30,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:30,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:30,770 INFO L87 Difference]: Start difference. First operand 80 states and 228 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:30,802 INFO L93 Difference]: Finished difference Result 81 states and 231 transitions. [2022-11-19 08:09:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:30,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:30,804 INFO L225 Difference]: With dead ends: 81 [2022-11-19 08:09:30,804 INFO L226 Difference]: Without dead ends: 81 [2022-11-19 08:09:30,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:30,805 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:30,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:09:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-19 08:09:30,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2022-11-19 08:09:30,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 2.923076923076923) internal successors, (228), 79 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 228 transitions. [2022-11-19 08:09:30,813 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 228 transitions. Word has length 8 [2022-11-19 08:09:30,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:30,813 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 228 transitions. [2022-11-19 08:09:30,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 228 transitions. [2022-11-19 08:09:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:30,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:30,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:30,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-11-19 08:09:31,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:31,027 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash 672383291, now seen corresponding path program 2 times [2022-11-19 08:09:31,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:31,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23044387] [2022-11-19 08:09:31,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:31,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:31,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:31,029 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:31,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 08:09:31,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:31,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:31,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:31,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:31,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:31,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:31,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:31,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23044387] [2022-11-19 08:09:31,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23044387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:31,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:31,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:31,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763759788] [2022-11-19 08:09:31,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:31,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:31,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:31,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:31,286 INFO L87 Difference]: Start difference. First operand 80 states and 228 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:31,310 INFO L93 Difference]: Finished difference Result 81 states and 231 transitions. [2022-11-19 08:09:31,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:31,312 INFO L225 Difference]: With dead ends: 81 [2022-11-19 08:09:31,312 INFO L226 Difference]: Without dead ends: 81 [2022-11-19 08:09:31,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:31,313 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:31,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:09:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-19 08:09:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2022-11-19 08:09:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 2.923076923076923) internal successors, (228), 79 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 228 transitions. [2022-11-19 08:09:31,333 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 228 transitions. Word has length 8 [2022-11-19 08:09:31,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:31,333 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 228 transitions. [2022-11-19 08:09:31,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,334 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 228 transitions. [2022-11-19 08:09:31,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:09:31,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:31,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:31,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:31,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:31,536 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:31,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:31,536 INFO L85 PathProgramCache]: Analyzing trace with hash 671498049, now seen corresponding path program 2 times [2022-11-19 08:09:31,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:31,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480641424] [2022-11-19 08:09:31,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:31,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:31,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:31,538 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:31,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 08:09:31,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:31,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:31,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:09:31,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:31,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:31,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:31,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480641424] [2022-11-19 08:09:31,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480641424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:31,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:31,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:31,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280917274] [2022-11-19 08:09:31,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:31,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:09:31,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:31,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:09:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:09:31,683 INFO L87 Difference]: Start difference. First operand 80 states and 228 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:31,846 INFO L93 Difference]: Finished difference Result 145 states and 388 transitions. [2022-11-19 08:09:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:09:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:31,848 INFO L225 Difference]: With dead ends: 145 [2022-11-19 08:09:31,848 INFO L226 Difference]: Without dead ends: 145 [2022-11-19 08:09:31,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:31,849 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:31,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:31,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-19 08:09:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 74. [2022-11-19 08:09:31,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 2.861111111111111) internal successors, (206), 73 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 206 transitions. [2022-11-19 08:09:31,854 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 206 transitions. Word has length 8 [2022-11-19 08:09:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:31,854 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 206 transitions. [2022-11-19 08:09:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 206 transitions. [2022-11-19 08:09:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:31,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:31,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:31,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:32,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:32,056 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:32,056 INFO L85 PathProgramCache]: Analyzing trace with hash -404290780, now seen corresponding path program 1 times [2022-11-19 08:09:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:32,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033579266] [2022-11-19 08:09:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:32,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:32,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:32,058 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:32,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-19 08:09:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:32,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:09:32,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:32,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:32,144 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:32,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033579266] [2022-11-19 08:09:32,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033579266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:32,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:32,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244816088] [2022-11-19 08:09:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:32,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:32,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:32,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:32,146 INFO L87 Difference]: Start difference. First operand 74 states and 206 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:32,207 INFO L93 Difference]: Finished difference Result 74 states and 199 transitions. [2022-11-19 08:09:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:32,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:32,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:32,208 INFO L225 Difference]: With dead ends: 74 [2022-11-19 08:09:32,208 INFO L226 Difference]: Without dead ends: 74 [2022-11-19 08:09:32,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:32,209 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:32,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-19 08:09:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-19 08:09:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 2.763888888888889) internal successors, (199), 73 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 199 transitions. [2022-11-19 08:09:32,214 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 199 transitions. Word has length 9 [2022-11-19 08:09:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:32,214 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 199 transitions. [2022-11-19 08:09:32,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 199 transitions. [2022-11-19 08:09:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:32,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:32,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:32,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:32,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:32,428 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash -317300099, now seen corresponding path program 1 times [2022-11-19 08:09:32,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:32,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761165930] [2022-11-19 08:09:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:32,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:32,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:32,430 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:32,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 08:09:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:32,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:32,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:32,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:32,690 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:32,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761165930] [2022-11-19 08:09:32,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761165930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:32,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:32,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:32,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289239258] [2022-11-19 08:09:32,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:32,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:32,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:32,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:32,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:32,692 INFO L87 Difference]: Start difference. First operand 74 states and 199 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:32,706 INFO L93 Difference]: Finished difference Result 78 states and 211 transitions. [2022-11-19 08:09:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:32,708 INFO L225 Difference]: With dead ends: 78 [2022-11-19 08:09:32,708 INFO L226 Difference]: Without dead ends: 78 [2022-11-19 08:09:32,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:32,709 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:32,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 08:09:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-19 08:09:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2022-11-19 08:09:32,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 2.7837837837837838) internal successors, (206), 75 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:32,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 206 transitions. [2022-11-19 08:09:32,713 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 206 transitions. Word has length 9 [2022-11-19 08:09:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:32,713 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 206 transitions. [2022-11-19 08:09:32,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:32,713 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 206 transitions. [2022-11-19 08:09:32,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:32,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:32,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:32,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:32,924 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash -317248949, now seen corresponding path program 2 times [2022-11-19 08:09:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:32,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882836539] [2022-11-19 08:09:32,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:32,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:32,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:32,926 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:32,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-19 08:09:33,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:33,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:33,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:33,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:33,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:33,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:33,157 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:33,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882836539] [2022-11-19 08:09:33,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882836539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:33,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:33,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:33,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003467693] [2022-11-19 08:09:33,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:33,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:33,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:33,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:33,159 INFO L87 Difference]: Start difference. First operand 76 states and 206 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:33,179 INFO L93 Difference]: Finished difference Result 79 states and 214 transitions. [2022-11-19 08:09:33,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:33,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:33,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:33,180 INFO L225 Difference]: With dead ends: 79 [2022-11-19 08:09:33,180 INFO L226 Difference]: Without dead ends: 79 [2022-11-19 08:09:33,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:33,181 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:33,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:09:33,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-19 08:09:33,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2022-11-19 08:09:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 2.7733333333333334) internal successors, (208), 76 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 208 transitions. [2022-11-19 08:09:33,186 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 208 transitions. Word has length 9 [2022-11-19 08:09:33,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:33,186 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 208 transitions. [2022-11-19 08:09:33,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 208 transitions. [2022-11-19 08:09:33,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:33,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:33,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:33,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:33,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:33,397 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:33,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:33,398 INFO L85 PathProgramCache]: Analyzing trace with hash -317247058, now seen corresponding path program 1 times [2022-11-19 08:09:33,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:33,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852378577] [2022-11-19 08:09:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:33,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:33,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:33,400 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:33,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 08:09:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:33,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:33,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:33,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:33,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:33,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852378577] [2022-11-19 08:09:33,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852378577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:33,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:33,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:33,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7582584] [2022-11-19 08:09:33,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:33,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:33,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:33,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:33,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:33,637 INFO L87 Difference]: Start difference. First operand 77 states and 208 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:33,656 INFO L93 Difference]: Finished difference Result 78 states and 211 transitions. [2022-11-19 08:09:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:33,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:33,657 INFO L225 Difference]: With dead ends: 78 [2022-11-19 08:09:33,658 INFO L226 Difference]: Without dead ends: 78 [2022-11-19 08:09:33,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:33,659 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:33,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:09:33,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-19 08:09:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-19 08:09:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 2.776315789473684) internal successors, (211), 77 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 211 transitions. [2022-11-19 08:09:33,663 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 211 transitions. Word has length 9 [2022-11-19 08:09:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:33,663 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 211 transitions. [2022-11-19 08:09:33,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 211 transitions. [2022-11-19 08:09:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:33,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:33,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:33,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:33,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:33,864 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:33,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash -317241478, now seen corresponding path program 2 times [2022-11-19 08:09:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:33,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931483832] [2022-11-19 08:09:33,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:33,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:33,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:33,867 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:33,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-19 08:09:33,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:33,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:33,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:33,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:34,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:34,108 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:34,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931483832] [2022-11-19 08:09:34,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931483832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:34,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:34,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:34,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369199780] [2022-11-19 08:09:34,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:34,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:34,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:34,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:34,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:34,109 INFO L87 Difference]: Start difference. First operand 78 states and 211 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:34,128 INFO L93 Difference]: Finished difference Result 79 states and 214 transitions. [2022-11-19 08:09:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:34,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:34,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:34,129 INFO L225 Difference]: With dead ends: 79 [2022-11-19 08:09:34,129 INFO L226 Difference]: Without dead ends: 79 [2022-11-19 08:09:34,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:34,130 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:34,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:09:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-19 08:09:34,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-11-19 08:09:34,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 2.779220779220779) internal successors, (214), 78 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 214 transitions. [2022-11-19 08:09:34,147 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 214 transitions. Word has length 9 [2022-11-19 08:09:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:34,148 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 214 transitions. [2022-11-19 08:09:34,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 214 transitions. [2022-11-19 08:09:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:34,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:34,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:34,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-11-19 08:09:34,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:34,360 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:34,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:34,360 INFO L85 PathProgramCache]: Analyzing trace with hash -632535760, now seen corresponding path program 1 times [2022-11-19 08:09:34,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:34,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27999727] [2022-11-19 08:09:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:34,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:34,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:34,362 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:34,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 08:09:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:34,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:34,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:34,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:34,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:34,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27999727] [2022-11-19 08:09:34,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27999727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:34,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:34,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:34,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985889999] [2022-11-19 08:09:34,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:34,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:34,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:34,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:34,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:34,581 INFO L87 Difference]: Start difference. First operand 79 states and 214 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:34,602 INFO L93 Difference]: Finished difference Result 81 states and 220 transitions. [2022-11-19 08:09:34,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:34,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:34,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:34,604 INFO L225 Difference]: With dead ends: 81 [2022-11-19 08:09:34,604 INFO L226 Difference]: Without dead ends: 81 [2022-11-19 08:09:34,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:34,605 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:34,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:09:34,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-19 08:09:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2022-11-19 08:09:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 2.779220779220779) internal successors, (214), 78 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 214 transitions. [2022-11-19 08:09:34,609 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 214 transitions. Word has length 9 [2022-11-19 08:09:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:34,609 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 214 transitions. [2022-11-19 08:09:34,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 214 transitions. [2022-11-19 08:09:34,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:34,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:34,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:34,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:34,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:34,821 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash -632548253, now seen corresponding path program 1 times [2022-11-19 08:09:34,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:34,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419278657] [2022-11-19 08:09:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:34,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:34,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:34,823 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:34,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-19 08:09:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:34,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:09:34,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:34,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:34,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:34,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419278657] [2022-11-19 08:09:34,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419278657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:34,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:34,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:09:34,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142138643] [2022-11-19 08:09:34,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:34,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:09:34,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:34,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:09:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:34,935 INFO L87 Difference]: Start difference. First operand 79 states and 214 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:34,999 INFO L93 Difference]: Finished difference Result 84 states and 222 transitions. [2022-11-19 08:09:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:09:35,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:35,001 INFO L225 Difference]: With dead ends: 84 [2022-11-19 08:09:35,001 INFO L226 Difference]: Without dead ends: 84 [2022-11-19 08:09:35,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:09:35,002 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:35,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:09:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-19 08:09:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-19 08:09:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 2.707317073170732) internal successors, (222), 83 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 222 transitions. [2022-11-19 08:09:35,011 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 222 transitions. Word has length 9 [2022-11-19 08:09:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:35,011 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 222 transitions. [2022-11-19 08:09:35,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,012 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 222 transitions. [2022-11-19 08:09:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:35,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:35,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:35,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:35,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:35,222 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:35,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:35,223 INFO L85 PathProgramCache]: Analyzing trace with hash -632543200, now seen corresponding path program 2 times [2022-11-19 08:09:35,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:35,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451968407] [2022-11-19 08:09:35,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:35,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:35,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:35,225 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:35,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 08:09:35,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:35,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:35,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:35,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:35,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:35,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:35,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451968407] [2022-11-19 08:09:35,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451968407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:35,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:35,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:35,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423279885] [2022-11-19 08:09:35,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:35,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:35,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:35,474 INFO L87 Difference]: Start difference. First operand 84 states and 222 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:35,495 INFO L93 Difference]: Finished difference Result 86 states and 227 transitions. [2022-11-19 08:09:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:35,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:35,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:35,497 INFO L225 Difference]: With dead ends: 86 [2022-11-19 08:09:35,497 INFO L226 Difference]: Without dead ends: 86 [2022-11-19 08:09:35,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:35,498 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:35,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:09:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-19 08:09:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-19 08:09:35,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.7023809523809526) internal successors, (227), 85 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 227 transitions. [2022-11-19 08:09:35,503 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 227 transitions. Word has length 9 [2022-11-19 08:09:35,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:35,503 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 227 transitions. [2022-11-19 08:09:35,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 227 transitions. [2022-11-19 08:09:35,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:35,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:35,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:35,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-11-19 08:09:35,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:35,718 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:35,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:35,718 INFO L85 PathProgramCache]: Analyzing trace with hash -632545029, now seen corresponding path program 3 times [2022-11-19 08:09:35,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:35,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240851327] [2022-11-19 08:09:35,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:35,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:35,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:35,720 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:35,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-19 08:09:35,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:35,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:35,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:35,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:35,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:35,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:35,958 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:35,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240851327] [2022-11-19 08:09:35,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240851327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:35,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:35,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:35,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162985849] [2022-11-19 08:09:35,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:35,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:35,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:35,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:35,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:35,960 INFO L87 Difference]: Start difference. First operand 86 states and 227 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:35,982 INFO L93 Difference]: Finished difference Result 87 states and 229 transitions. [2022-11-19 08:09:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:35,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:35,983 INFO L225 Difference]: With dead ends: 87 [2022-11-19 08:09:35,983 INFO L226 Difference]: Without dead ends: 87 [2022-11-19 08:09:35,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:35,984 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:35,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:09:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-19 08:09:35,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2022-11-19 08:09:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.7023809523809526) internal successors, (227), 85 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 227 transitions. [2022-11-19 08:09:35,989 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 227 transitions. Word has length 9 [2022-11-19 08:09:35,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:35,989 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 227 transitions. [2022-11-19 08:09:35,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 227 transitions. [2022-11-19 08:09:35,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:35,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:35,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:36,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:36,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:36,191 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:36,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:36,191 INFO L85 PathProgramCache]: Analyzing trace with hash -630957550, now seen corresponding path program 3 times [2022-11-19 08:09:36,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:36,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139514624] [2022-11-19 08:09:36,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:36,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:36,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:36,193 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:36,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-19 08:09:36,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:36,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:36,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:36,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:36,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:36,399 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:36,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139514624] [2022-11-19 08:09:36,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139514624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:36,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:36,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456455823] [2022-11-19 08:09:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:36,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:36,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:36,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:36,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:36,401 INFO L87 Difference]: Start difference. First operand 86 states and 227 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:36,421 INFO L93 Difference]: Finished difference Result 87 states and 230 transitions. [2022-11-19 08:09:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:36,423 INFO L225 Difference]: With dead ends: 87 [2022-11-19 08:09:36,423 INFO L226 Difference]: Without dead ends: 87 [2022-11-19 08:09:36,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:36,424 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:36,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:09:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-19 08:09:36,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2022-11-19 08:09:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.7023809523809526) internal successors, (227), 85 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:36,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 227 transitions. [2022-11-19 08:09:36,428 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 227 transitions. Word has length 9 [2022-11-19 08:09:36,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 227 transitions. [2022-11-19 08:09:36,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:36,429 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 227 transitions. [2022-11-19 08:09:36,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:36,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:36,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:36,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:36,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:36,630 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:36,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash -630959379, now seen corresponding path program 4 times [2022-11-19 08:09:36,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:36,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482244240] [2022-11-19 08:09:36,631 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:36,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:36,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:36,632 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:36,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-19 08:09:36,734 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:36,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:36,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:36,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:36,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:36,853 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:36,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482244240] [2022-11-19 08:09:36,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482244240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:36,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:36,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82853002] [2022-11-19 08:09:36,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:36,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:36,855 INFO L87 Difference]: Start difference. First operand 86 states and 227 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:36,877 INFO L93 Difference]: Finished difference Result 85 states and 224 transitions. [2022-11-19 08:09:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:36,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:36,879 INFO L225 Difference]: With dead ends: 85 [2022-11-19 08:09:36,879 INFO L226 Difference]: Without dead ends: 85 [2022-11-19 08:09:36,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:36,880 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:36,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:09:36,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-19 08:09:36,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2022-11-19 08:09:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 2.7160493827160495) internal successors, (220), 82 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 220 transitions. [2022-11-19 08:09:36,885 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 220 transitions. Word has length 9 [2022-11-19 08:09:36,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:36,886 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 220 transitions. [2022-11-19 08:09:36,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 220 transitions. [2022-11-19 08:09:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 08:09:36,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:36,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:36,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-11-19 08:09:37,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:37,100 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:37,101 INFO L85 PathProgramCache]: Analyzing trace with hash -630953768, now seen corresponding path program 3 times [2022-11-19 08:09:37,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:37,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980301185] [2022-11-19 08:09:37,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:37,103 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:37,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-19 08:09:37,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:37,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:37,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:37,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:37,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:37,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:37,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980301185] [2022-11-19 08:09:37,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980301185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:37,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:37,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:37,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407771186] [2022-11-19 08:09:37,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:37,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:37,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:37,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:37,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:37,340 INFO L87 Difference]: Start difference. First operand 83 states and 220 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:37,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:37,361 INFO L93 Difference]: Finished difference Result 85 states and 224 transitions. [2022-11-19 08:09:37,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:37,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 08:09:37,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:37,362 INFO L225 Difference]: With dead ends: 85 [2022-11-19 08:09:37,362 INFO L226 Difference]: Without dead ends: 85 [2022-11-19 08:09:37,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:37,363 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:37,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:09:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-19 08:09:37,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-19 08:09:37,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 2.6987951807228914) internal successors, (224), 84 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 224 transitions. [2022-11-19 08:09:37,367 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 224 transitions. Word has length 9 [2022-11-19 08:09:37,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:37,368 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 224 transitions. [2022-11-19 08:09:37,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:37,368 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 224 transitions. [2022-11-19 08:09:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:37,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:37,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:37,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:37,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:37,569 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1246360284, now seen corresponding path program 1 times [2022-11-19 08:09:37,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:37,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860141453] [2022-11-19 08:09:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:37,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:37,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:37,580 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:37,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-19 08:09:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:37,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:37,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:37,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:37,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:37,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860141453] [2022-11-19 08:09:37,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860141453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:37,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:37,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243957883] [2022-11-19 08:09:37,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:37,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:37,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:37,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:37,830 INFO L87 Difference]: Start difference. First operand 85 states and 224 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:37,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:37,848 INFO L93 Difference]: Finished difference Result 88 states and 231 transitions. [2022-11-19 08:09:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:37,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:37,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:37,849 INFO L225 Difference]: With dead ends: 88 [2022-11-19 08:09:37,849 INFO L226 Difference]: Without dead ends: 88 [2022-11-19 08:09:37,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:37,850 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:37,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 08:09:37,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-19 08:09:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2022-11-19 08:09:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 2.7023809523809526) internal successors, (227), 85 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 227 transitions. [2022-11-19 08:09:37,855 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 227 transitions. Word has length 10 [2022-11-19 08:09:37,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:37,855 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 227 transitions. [2022-11-19 08:09:37,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:37,855 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 227 transitions. [2022-11-19 08:09:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:37,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:37,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:37,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:38,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:38,057 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1246367724, now seen corresponding path program 2 times [2022-11-19 08:09:38,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:38,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986163189] [2022-11-19 08:09:38,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:38,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:38,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:38,059 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:38,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-19 08:09:38,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:38,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:38,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:38,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:38,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:38,291 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:38,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986163189] [2022-11-19 08:09:38,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986163189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:38,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:38,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:38,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716292503] [2022-11-19 08:09:38,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:38,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:38,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:38,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:38,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:38,293 INFO L87 Difference]: Start difference. First operand 86 states and 227 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:38,311 INFO L93 Difference]: Finished difference Result 90 states and 237 transitions. [2022-11-19 08:09:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:38,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:38,313 INFO L225 Difference]: With dead ends: 90 [2022-11-19 08:09:38,313 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 08:09:38,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:38,314 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:38,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:09:38,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 08:09:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2022-11-19 08:09:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 86 states have (on average 2.697674418604651) internal successors, (232), 87 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 232 transitions. [2022-11-19 08:09:38,318 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 232 transitions. Word has length 10 [2022-11-19 08:09:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:38,319 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 232 transitions. [2022-11-19 08:09:38,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 232 transitions. [2022-11-19 08:09:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:38,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:38,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:38,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:38,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:38,521 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:38,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:38,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1246367786, now seen corresponding path program 1 times [2022-11-19 08:09:38,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:38,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788936829] [2022-11-19 08:09:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:38,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:38,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:38,523 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:38,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-19 08:09:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:38,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:38,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:38,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:38,747 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:38,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788936829] [2022-11-19 08:09:38,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788936829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:38,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:38,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:38,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572984275] [2022-11-19 08:09:38,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:38,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:38,748 INFO L87 Difference]: Start difference. First operand 88 states and 232 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:38,766 INFO L93 Difference]: Finished difference Result 90 states and 237 transitions. [2022-11-19 08:09:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:38,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:38,768 INFO L225 Difference]: With dead ends: 90 [2022-11-19 08:09:38,768 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 08:09:38,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:38,768 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:38,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:09:38,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 08:09:38,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2022-11-19 08:09:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 87 states have (on average 2.7011494252873565) internal successors, (235), 88 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 235 transitions. [2022-11-19 08:09:38,773 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 235 transitions. Word has length 10 [2022-11-19 08:09:38,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:38,773 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 235 transitions. [2022-11-19 08:09:38,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:38,773 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 235 transitions. [2022-11-19 08:09:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:38,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:38,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:38,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:38,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:38,975 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:38,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:38,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1246361964, now seen corresponding path program 1 times [2022-11-19 08:09:38,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:38,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883195017] [2022-11-19 08:09:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:38,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:38,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:38,978 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:38,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-19 08:09:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:39,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:09:39,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:39,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:39,165 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:39,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883195017] [2022-11-19 08:09:39,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883195017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:39,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:39,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629370779] [2022-11-19 08:09:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:39,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:39,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:39,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:39,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:39,176 INFO L87 Difference]: Start difference. First operand 89 states and 235 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:39,381 INFO L93 Difference]: Finished difference Result 126 states and 334 transitions. [2022-11-19 08:09:39,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:09:39,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:39,383 INFO L225 Difference]: With dead ends: 126 [2022-11-19 08:09:39,384 INFO L226 Difference]: Without dead ends: 126 [2022-11-19 08:09:39,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:09:39,384 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:39,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-19 08:09:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 95. [2022-11-19 08:09:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 93 states have (on average 2.7419354838709675) internal successors, (255), 94 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 255 transitions. [2022-11-19 08:09:39,389 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 255 transitions. Word has length 10 [2022-11-19 08:09:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:39,389 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 255 transitions. [2022-11-19 08:09:39,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 255 transitions. [2022-11-19 08:09:39,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:39,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:39,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:39,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-11-19 08:09:39,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:39,603 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:39,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1246362206, now seen corresponding path program 2 times [2022-11-19 08:09:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:39,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977271202] [2022-11-19 08:09:39,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:39,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:39,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:39,605 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:39,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-19 08:09:39,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:39,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:39,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:39,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:39,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:39,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977271202] [2022-11-19 08:09:39,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977271202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:39,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:39,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:39,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978166058] [2022-11-19 08:09:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:39,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:39,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:39,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:39,836 INFO L87 Difference]: Start difference. First operand 95 states and 255 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:39,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:39,850 INFO L93 Difference]: Finished difference Result 97 states and 260 transitions. [2022-11-19 08:09:39,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:39,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:39,851 INFO L225 Difference]: With dead ends: 97 [2022-11-19 08:09:39,851 INFO L226 Difference]: Without dead ends: 97 [2022-11-19 08:09:39,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:39,852 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:39,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:09:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-19 08:09:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2022-11-19 08:09:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 2.74468085106383) internal successors, (258), 95 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:39,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 258 transitions. [2022-11-19 08:09:39,856 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 258 transitions. Word has length 10 [2022-11-19 08:09:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:39,857 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 258 transitions. [2022-11-19 08:09:39,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 258 transitions. [2022-11-19 08:09:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:39,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:39,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:39,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:40,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:40,058 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:40,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1244782074, now seen corresponding path program 3 times [2022-11-19 08:09:40,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:40,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450233433] [2022-11-19 08:09:40,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:40,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:40,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:40,060 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:40,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-19 08:09:40,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:40,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:40,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:40,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:40,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:40,295 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:40,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450233433] [2022-11-19 08:09:40,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450233433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:40,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:40,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:40,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407487090] [2022-11-19 08:09:40,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:40,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:40,296 INFO L87 Difference]: Start difference. First operand 96 states and 258 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:40,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:40,315 INFO L93 Difference]: Finished difference Result 100 states and 268 transitions. [2022-11-19 08:09:40,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:40,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:40,316 INFO L225 Difference]: With dead ends: 100 [2022-11-19 08:09:40,316 INFO L226 Difference]: Without dead ends: 100 [2022-11-19 08:09:40,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:40,317 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:40,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:09:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-19 08:09:40,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2022-11-19 08:09:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 95 states have (on average 2.736842105263158) internal successors, (260), 96 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:40,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 260 transitions. [2022-11-19 08:09:40,321 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 260 transitions. Word has length 10 [2022-11-19 08:09:40,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:40,322 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 260 transitions. [2022-11-19 08:09:40,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 260 transitions. [2022-11-19 08:09:40,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:40,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:40,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:40,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:40,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:40,535 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:40,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1244782136, now seen corresponding path program 3 times [2022-11-19 08:09:40,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:40,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707091165] [2022-11-19 08:09:40,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:40,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:40,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:40,538 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:40,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-19 08:09:40,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:40,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:40,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:40,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:40,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:40,808 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:40,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707091165] [2022-11-19 08:09:40,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707091165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:40,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:40,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:40,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900697013] [2022-11-19 08:09:40,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:40,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:40,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:40,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:40,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:40,809 INFO L87 Difference]: Start difference. First operand 97 states and 260 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:40,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:40,829 INFO L93 Difference]: Finished difference Result 109 states and 283 transitions. [2022-11-19 08:09:40,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:40,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:40,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:40,830 INFO L225 Difference]: With dead ends: 109 [2022-11-19 08:09:40,831 INFO L226 Difference]: Without dead ends: 97 [2022-11-19 08:09:40,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:40,832 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:40,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2022-11-19 08:09:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-19 08:09:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-19 08:09:40,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 95 states have (on average 2.7157894736842105) internal successors, (258), 96 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 258 transitions. [2022-11-19 08:09:40,836 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 258 transitions. Word has length 10 [2022-11-19 08:09:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:40,837 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 258 transitions. [2022-11-19 08:09:40,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 258 transitions. [2022-11-19 08:09:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:40,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:40,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:40,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:41,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:41,050 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:41,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:41,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1244556487, now seen corresponding path program 1 times [2022-11-19 08:09:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:41,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781049032] [2022-11-19 08:09:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:41,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:41,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:41,052 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:41,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-19 08:09:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:41,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:41,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:41,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:41,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:41,202 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:41,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781049032] [2022-11-19 08:09:41,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781049032] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:41,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [462515994] [2022-11-19 08:09:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:41,203 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:41,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:09:41,204 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:09:41,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-11-19 08:09:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:41,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:41,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:41,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:41,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [462515994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:41,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867101614] [2022-11-19 08:09:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:41,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:41,408 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:41,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-19 08:09:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:41,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:41,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:41,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:41,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867101614] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:41,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:09:41,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-11-19 08:09:41,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483846278] [2022-11-19 08:09:41,531 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:41,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:41,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:41,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:41,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:41,534 INFO L87 Difference]: Start difference. First operand 97 states and 258 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:41,716 INFO L93 Difference]: Finished difference Result 182 states and 487 transitions. [2022-11-19 08:09:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:41,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:41,718 INFO L225 Difference]: With dead ends: 182 [2022-11-19 08:09:41,718 INFO L226 Difference]: Without dead ends: 182 [2022-11-19 08:09:41,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:09:41,719 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:41,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 0 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-19 08:09:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-19 08:09:41,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 2.7055555555555557) internal successors, (487), 181 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 487 transitions. [2022-11-19 08:09:41,727 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 487 transitions. Word has length 10 [2022-11-19 08:09:41,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:41,727 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 487 transitions. [2022-11-19 08:09:41,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:41,728 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 487 transitions. [2022-11-19 08:09:41,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:41,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:41,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:41,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:41,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-19 08:09:42,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-11-19 08:09:42,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:42,332 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:42,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:42,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1244552426, now seen corresponding path program 4 times [2022-11-19 08:09:42,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:42,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101803640] [2022-11-19 08:09:42,332 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:42,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:42,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:42,334 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:42,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-19 08:09:42,431 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:42,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:42,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:42,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:42,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:42,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:42,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101803640] [2022-11-19 08:09:42,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101803640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:42,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:42,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:09:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291923694] [2022-11-19 08:09:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:42,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:09:42,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:42,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:09:42,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:42,574 INFO L87 Difference]: Start difference. First operand 182 states and 487 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:42,590 INFO L93 Difference]: Finished difference Result 186 states and 496 transitions. [2022-11-19 08:09:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:42,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:42,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:42,593 INFO L225 Difference]: With dead ends: 186 [2022-11-19 08:09:42,593 INFO L226 Difference]: Without dead ends: 186 [2022-11-19 08:09:42,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:09:42,594 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:42,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:09:42,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-19 08:09:42,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2022-11-19 08:09:42,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 2.7055555555555557) internal successors, (487), 181 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:42,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 487 transitions. [2022-11-19 08:09:42,601 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 487 transitions. Word has length 10 [2022-11-19 08:09:42,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:42,601 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 487 transitions. [2022-11-19 08:09:42,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:42,602 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 487 transitions. [2022-11-19 08:09:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:42,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:42,602 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:42,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:42,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:42,815 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1244550535, now seen corresponding path program 4 times [2022-11-19 08:09:42,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:42,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449456295] [2022-11-19 08:09:42,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:42,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:42,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:42,819 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:42,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-19 08:09:42,953 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:42,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:42,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:42,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:43,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:47,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:47,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449456295] [2022-11-19 08:09:47,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449456295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:47,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1309406257] [2022-11-19 08:09:47,142 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:47,142 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:47,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:09:47,143 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:09:47,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-11-19 08:09:47,332 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:47,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:47,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:47,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:47,464 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_500 (_ BitVec 1)) (v_ArrVal_499 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_89| (_ BitVec 32))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_89| v_ArrVal_500) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_499) |v_ULTIMATE.start_main_~#id1~0#1.base_89| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_89| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_89|)))) is different from true [2022-11-19 08:09:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:09:47,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:47,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1309406257] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:47,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806150699] [2022-11-19 08:09:47,505 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:47,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:47,506 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:47,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-19 08:09:47,620 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:47,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:47,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:47,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:49,743 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_500 (_ BitVec 1)) (v_ArrVal_499 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_90| (_ BitVec 32))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_90| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_90|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_90| v_ArrVal_500) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_499) |v_ULTIMATE.start_main_~#id1~0#1.base_90| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:09:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:09:49,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:49,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806150699] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:49,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:09:49,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:09:49,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675440167] [2022-11-19 08:09:49,782 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:49,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:09:49,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:49,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:09:49,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:09:49,783 INFO L87 Difference]: Start difference. First operand 182 states and 487 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:49,832 INFO L93 Difference]: Finished difference Result 179 states and 477 transitions. [2022-11-19 08:09:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:09:49,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:49,834 INFO L225 Difference]: With dead ends: 179 [2022-11-19 08:09:49,835 INFO L226 Difference]: Without dead ends: 179 [2022-11-19 08:09:49,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:09:49,835 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:49,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:09:49,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-19 08:09:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-19 08:09:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 2.694915254237288) internal successors, (477), 178 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:49,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 477 transitions. [2022-11-19 08:09:49,842 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 477 transitions. Word has length 10 [2022-11-19 08:09:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:49,842 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 477 transitions. [2022-11-19 08:09:49,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:49,842 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 477 transitions. [2022-11-19 08:09:49,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:49,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:49,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:49,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:50,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:50,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2022-11-19 08:09:50,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:50,444 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:50,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1272191784, now seen corresponding path program 2 times [2022-11-19 08:09:50,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:50,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339147893] [2022-11-19 08:09:50,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:09:50,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:50,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:50,446 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:50,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-19 08:09:50,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:09:50,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:50,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:09:50,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:50,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:50,589 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:50,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339147893] [2022-11-19 08:09:50,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339147893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:50,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:50,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116545144] [2022-11-19 08:09:50,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:50,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:50,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:50,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:50,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:50,591 INFO L87 Difference]: Start difference. First operand 179 states and 477 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:50,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:50,777 INFO L93 Difference]: Finished difference Result 268 states and 718 transitions. [2022-11-19 08:09:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:09:50,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:50,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:50,779 INFO L225 Difference]: With dead ends: 268 [2022-11-19 08:09:50,779 INFO L226 Difference]: Without dead ends: 268 [2022-11-19 08:09:50,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:09:50,780 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:50,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-19 08:09:50,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 189. [2022-11-19 08:09:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 187 states have (on average 2.7112299465240643) internal successors, (507), 188 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:50,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 507 transitions. [2022-11-19 08:09:50,789 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 507 transitions. Word has length 10 [2022-11-19 08:09:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:50,789 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 507 transitions. [2022-11-19 08:09:50,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:50,789 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 507 transitions. [2022-11-19 08:09:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:50,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:50,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:50,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:51,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:51,002 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1272280134, now seen corresponding path program 3 times [2022-11-19 08:09:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:51,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797540559] [2022-11-19 08:09:51,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:09:51,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:51,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:51,004 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:51,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-19 08:09:51,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:09:51,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:51,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:09:51,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:51,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:51,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:51,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797540559] [2022-11-19 08:09:51,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797540559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:51,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:51,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:51,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686016778] [2022-11-19 08:09:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:51,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:51,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:51,173 INFO L87 Difference]: Start difference. First operand 189 states and 507 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:51,376 INFO L93 Difference]: Finished difference Result 344 states and 907 transitions. [2022-11-19 08:09:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:09:51,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:51,378 INFO L225 Difference]: With dead ends: 344 [2022-11-19 08:09:51,378 INFO L226 Difference]: Without dead ends: 344 [2022-11-19 08:09:51,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:09:51,379 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:51,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:51,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-19 08:09:51,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 189. [2022-11-19 08:09:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 187 states have (on average 2.7914438502673797) internal successors, (522), 188 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 522 transitions. [2022-11-19 08:09:51,387 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 522 transitions. Word has length 10 [2022-11-19 08:09:51,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:51,388 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 522 transitions. [2022-11-19 08:09:51,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 522 transitions. [2022-11-19 08:09:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:51,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:51,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:51,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:51,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:51,600 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:51,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:51,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1272249444, now seen corresponding path program 4 times [2022-11-19 08:09:51,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:51,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128894442] [2022-11-19 08:09:51,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:51,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:51,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:51,603 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:51,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-19 08:09:51,689 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:51,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:51,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:09:51,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:51,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:09:51,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128894442] [2022-11-19 08:09:51,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128894442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:09:51,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:09:51,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:09:51,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931934945] [2022-11-19 08:09:51,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:09:51,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:51,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:51,780 INFO L87 Difference]: Start difference. First operand 189 states and 522 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:52,014 INFO L93 Difference]: Finished difference Result 286 states and 765 transitions. [2022-11-19 08:09:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:09:52,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:52,016 INFO L225 Difference]: With dead ends: 286 [2022-11-19 08:09:52,016 INFO L226 Difference]: Without dead ends: 286 [2022-11-19 08:09:52,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:09:52,017 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:52,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-19 08:09:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 188. [2022-11-19 08:09:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 186 states have (on average 2.7204301075268815) internal successors, (506), 187 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:52,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 506 transitions. [2022-11-19 08:09:52,024 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 506 transitions. Word has length 10 [2022-11-19 08:09:52,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:52,025 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 506 transitions. [2022-11-19 08:09:52,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:52,025 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 506 transitions. [2022-11-19 08:09:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:52,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:52,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:52,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:52,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:52,234 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1866223620, now seen corresponding path program 1 times [2022-11-19 08:09:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:52,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143718622] [2022-11-19 08:09:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:52,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:52,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:52,235 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:52,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-19 08:09:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:52,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:52,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,352 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:52,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143718622] [2022-11-19 08:09:52,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143718622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:52,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [252512864] [2022-11-19 08:09:52,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:52,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:52,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:09:52,354 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:09:52,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2022-11-19 08:09:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:52,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:52,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [252512864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:52,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984516495] [2022-11-19 08:09:52,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:09:52,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:52,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:09:52,548 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:09:52,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-11-19 08:09:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:09:52,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:09:52,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:52,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984516495] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:52,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:09:52,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2022-11-19 08:09:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434952072] [2022-11-19 08:09:52,681 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:09:52,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:09:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:09:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:09:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:09:52,683 INFO L87 Difference]: Start difference. First operand 188 states and 506 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:52,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:09:52,869 INFO L93 Difference]: Finished difference Result 357 states and 978 transitions. [2022-11-19 08:09:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:09:52,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:09:52,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:09:52,872 INFO L225 Difference]: With dead ends: 357 [2022-11-19 08:09:52,872 INFO L226 Difference]: Without dead ends: 357 [2022-11-19 08:09:52,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:09:52,873 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:09:52,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:09:52,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-19 08:09:52,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-11-19 08:09:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 355 states have (on average 2.7549295774647886) internal successors, (978), 356 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 978 transitions. [2022-11-19 08:09:52,885 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 978 transitions. Word has length 10 [2022-11-19 08:09:52,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:09:52,885 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 978 transitions. [2022-11-19 08:09:52,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:09:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 978 transitions. [2022-11-19 08:09:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:09:52,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:09:52,886 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:09:52,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2022-11-19 08:09:53,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2022-11-19 08:09:53,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2022-11-19 08:09:53,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:09:53,490 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:09:53,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:09:53,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1866228673, now seen corresponding path program 4 times [2022-11-19 08:09:53,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:09:53,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172501289] [2022-11-19 08:09:53,491 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:53,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:09:53,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:09:53,492 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:09:53,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-19 08:09:53,601 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:53,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:53,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:09:53,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:09:53,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:53,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:09:57,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:09:57,788 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:09:57,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172501289] [2022-11-19 08:09:57,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172501289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:09:57,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [354021435] [2022-11-19 08:09:57,789 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:09:57,789 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:09:57,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:09:57,790 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:09:57,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2022-11-19 08:09:57,968 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:09:57,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:09:57,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:09:57,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:00,100 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_92| (_ BitVec 32)) (v_ArrVal_608 (_ BitVec 1)) (v_ArrVal_606 (_ BitVec 1))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_92| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_92|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_92| v_ArrVal_606) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_608) |v_ULTIMATE.start_main_~#id1~0#1.base_92| (_ bv0 1))))) is different from true [2022-11-19 08:10:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:00,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:00,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:00,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [354021435] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:00,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952179956] [2022-11-19 08:10:00,134 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:10:00,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:00,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:00,136 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:00,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-11-19 08:10:00,243 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:10:00,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:00,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:00,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:02,355 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_93| (_ BitVec 32)) (v_ArrVal_608 (_ BitVec 1)) (v_ArrVal_606 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_93| v_ArrVal_606) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_608) |v_ULTIMATE.start_main_~#id1~0#1.base_93| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_93|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_93| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:10:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:02,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:02,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952179956] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:02,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:02,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:10:02,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813725891] [2022-11-19 08:10:02,394 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:02,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:10:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:10:02,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:02,395 INFO L87 Difference]: Start difference. First operand 357 states and 978 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:02,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:02,443 INFO L93 Difference]: Finished difference Result 354 states and 968 transitions. [2022-11-19 08:10:02,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:02,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:10:02,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:02,446 INFO L225 Difference]: With dead ends: 354 [2022-11-19 08:10:02,446 INFO L226 Difference]: Without dead ends: 354 [2022-11-19 08:10:02,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:02,447 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:02,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-11-19 08:10:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-19 08:10:02,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 347. [2022-11-19 08:10:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 345 states have (on average 2.7594202898550724) internal successors, (952), 346 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 952 transitions. [2022-11-19 08:10:02,457 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 952 transitions. Word has length 10 [2022-11-19 08:10:02,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:02,457 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 952 transitions. [2022-11-19 08:10:02,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 952 transitions. [2022-11-19 08:10:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:10:02,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:02,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:02,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:02,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:02,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2022-11-19 08:10:03,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:03,059 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1866226844, now seen corresponding path program 4 times [2022-11-19 08:10:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:03,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455883386] [2022-11-19 08:10:03,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:10:03,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:03,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:03,061 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:03,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-19 08:10:03,158 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:10:03,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:03,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:03,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:03,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:03,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:03,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455883386] [2022-11-19 08:10:03,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455883386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:03,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:03,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:03,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162105908] [2022-11-19 08:10:03,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:03,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:03,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:03,286 INFO L87 Difference]: Start difference. First operand 347 states and 952 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:03,305 INFO L93 Difference]: Finished difference Result 356 states and 972 transitions. [2022-11-19 08:10:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:03,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:10:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:03,308 INFO L225 Difference]: With dead ends: 356 [2022-11-19 08:10:03,308 INFO L226 Difference]: Without dead ends: 356 [2022-11-19 08:10:03,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:03,309 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:03,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:10:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-19 08:10:03,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 351. [2022-11-19 08:10:03,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 349 states have (on average 2.7535816618911175) internal successors, (961), 350 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 961 transitions. [2022-11-19 08:10:03,321 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 961 transitions. Word has length 10 [2022-11-19 08:10:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:03,321 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 961 transitions. [2022-11-19 08:10:03,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 961 transitions. [2022-11-19 08:10:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:10:03,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:03,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:03,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:03,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:03,534 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:03,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:03,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1865996204, now seen corresponding path program 5 times [2022-11-19 08:10:03,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:03,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861007979] [2022-11-19 08:10:03,535 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:10:03,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:03,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:03,536 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:03,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-19 08:10:03,661 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:10:03,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:03,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:03,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:03,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:03,781 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:03,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861007979] [2022-11-19 08:10:03,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861007979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:03,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:03,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:03,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833699361] [2022-11-19 08:10:03,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:03,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:03,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:03,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:03,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:03,783 INFO L87 Difference]: Start difference. First operand 351 states and 961 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:03,800 INFO L93 Difference]: Finished difference Result 391 states and 1041 transitions. [2022-11-19 08:10:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:03,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:10:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:03,802 INFO L225 Difference]: With dead ends: 391 [2022-11-19 08:10:03,803 INFO L226 Difference]: Without dead ends: 349 [2022-11-19 08:10:03,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:03,803 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:03,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-11-19 08:10:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-19 08:10:03,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2022-11-19 08:10:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 347 states have (on average 2.755043227665706) internal successors, (956), 348 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 956 transitions. [2022-11-19 08:10:03,814 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 956 transitions. Word has length 10 [2022-11-19 08:10:03,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:03,814 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 956 transitions. [2022-11-19 08:10:03,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 956 transitions. [2022-11-19 08:10:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:10:03,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:03,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:03,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2022-11-19 08:10:04,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:04,027 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:04,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1915151354, now seen corresponding path program 6 times [2022-11-19 08:10:04,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:04,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337558392] [2022-11-19 08:10:04,028 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:04,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:04,029 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:04,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-19 08:10:04,140 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 08:10:04,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:04,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:04,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:04,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:04,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:04,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337558392] [2022-11-19 08:10:04,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337558392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:04,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:04,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:04,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296925682] [2022-11-19 08:10:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:04,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:04,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:04,269 INFO L87 Difference]: Start difference. First operand 349 states and 956 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:04,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:04,291 INFO L93 Difference]: Finished difference Result 351 states and 960 transitions. [2022-11-19 08:10:04,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:04,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:10:04,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:04,293 INFO L225 Difference]: With dead ends: 351 [2022-11-19 08:10:04,293 INFO L226 Difference]: Without dead ends: 351 [2022-11-19 08:10:04,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:04,294 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:04,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-19 08:10:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-19 08:10:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 347. [2022-11-19 08:10:04,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 345 states have (on average 2.756521739130435) internal successors, (951), 346 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 951 transitions. [2022-11-19 08:10:04,304 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 951 transitions. Word has length 10 [2022-11-19 08:10:04,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:04,304 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 951 transitions. [2022-11-19 08:10:04,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:04,304 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 951 transitions. [2022-11-19 08:10:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:10:04,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:04,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:04,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:04,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:04,532 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:04,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:04,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1915096422, now seen corresponding path program 5 times [2022-11-19 08:10:04,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:04,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468607631] [2022-11-19 08:10:04,533 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:10:04,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:04,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:04,534 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:04,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-19 08:10:04,647 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:10:04,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:04,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:04,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:04,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:04,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:04,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468607631] [2022-11-19 08:10:04,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468607631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:04,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:04,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:04,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55702631] [2022-11-19 08:10:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:04,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:04,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:04,770 INFO L87 Difference]: Start difference. First operand 347 states and 951 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:04,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:04,792 INFO L93 Difference]: Finished difference Result 349 states and 955 transitions. [2022-11-19 08:10:04,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:04,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 08:10:04,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:04,795 INFO L225 Difference]: With dead ends: 349 [2022-11-19 08:10:04,795 INFO L226 Difference]: Without dead ends: 349 [2022-11-19 08:10:04,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:04,795 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:04,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-19 08:10:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-19 08:10:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 344. [2022-11-19 08:10:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 342 states have (on average 2.760233918128655) internal successors, (944), 343 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 944 transitions. [2022-11-19 08:10:04,808 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 944 transitions. Word has length 10 [2022-11-19 08:10:04,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:04,810 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 944 transitions. [2022-11-19 08:10:04,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 944 transitions. [2022-11-19 08:10:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:04,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:04,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:04,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:05,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:05,023 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:05,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:05,024 INFO L85 PathProgramCache]: Analyzing trace with hash 17537613, now seen corresponding path program 7 times [2022-11-19 08:10:05,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:05,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316838412] [2022-11-19 08:10:05,024 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:05,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:05,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:05,025 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:05,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-19 08:10:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:05,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:05,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:05,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:09,308 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316838412] [2022-11-19 08:10:09,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316838412] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1608974542] [2022-11-19 08:10:09,309 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:09,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:09,310 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:09,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-19 08:10:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:09,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:09,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:09,710 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_720 (_ BitVec 1)) (v_ArrVal_718 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_99| (_ BitVec 32))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_99| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_99| v_ArrVal_718) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_720) |v_ULTIMATE.start_main_~#id1~0#1.base_99| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_99|)))) is different from true [2022-11-19 08:10:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:09,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:09,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1608974542] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:09,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622740603] [2022-11-19 08:10:09,761 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:09,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:09,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:09,762 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:09,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2022-11-19 08:10:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:09,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:09,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:11,989 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_720 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_100| (_ BitVec 32)) (v_ArrVal_718 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_100|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_100| v_ArrVal_718) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_720) |v_ULTIMATE.start_main_~#id1~0#1.base_100| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_100| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))) is different from true [2022-11-19 08:10:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:11,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:12,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622740603] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:12,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:12,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:10:12,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508925170] [2022-11-19 08:10:12,025 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:12,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:10:12,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:10:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:12,025 INFO L87 Difference]: Start difference. First operand 344 states and 944 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:12,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:12,054 INFO L93 Difference]: Finished difference Result 356 states and 971 transitions. [2022-11-19 08:10:12,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:12,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:12,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:12,057 INFO L225 Difference]: With dead ends: 356 [2022-11-19 08:10:12,058 INFO L226 Difference]: Without dead ends: 356 [2022-11-19 08:10:12,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:12,058 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:12,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-11-19 08:10:12,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-19 08:10:12,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 344. [2022-11-19 08:10:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 342 states have (on average 2.760233918128655) internal successors, (944), 343 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:12,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 944 transitions. [2022-11-19 08:10:12,069 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 944 transitions. Word has length 11 [2022-11-19 08:10:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:12,069 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 944 transitions. [2022-11-19 08:10:12,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 944 transitions. [2022-11-19 08:10:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:12,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:12,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:12,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:12,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:12,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:12,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:12,682 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:12,683 INFO L85 PathProgramCache]: Analyzing trace with hash 17537551, now seen corresponding path program 1 times [2022-11-19 08:10:12,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:12,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063084735] [2022-11-19 08:10:12,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:12,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:12,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:12,684 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:12,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-19 08:10:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:12,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:12,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:12,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:12,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:12,904 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:12,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063084735] [2022-11-19 08:10:12,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063084735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:12,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:12,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:12,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061832169] [2022-11-19 08:10:12,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:12,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:12,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:12,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:12,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:12,905 INFO L87 Difference]: Start difference. First operand 344 states and 944 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:12,919 INFO L93 Difference]: Finished difference Result 369 states and 1004 transitions. [2022-11-19 08:10:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:12,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:12,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:12,922 INFO L225 Difference]: With dead ends: 369 [2022-11-19 08:10:12,923 INFO L226 Difference]: Without dead ends: 369 [2022-11-19 08:10:12,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:12,923 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:12,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:10:12,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-19 08:10:12,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 364. [2022-11-19 08:10:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 362 states have (on average 2.7430939226519335) internal successors, (993), 363 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 993 transitions. [2022-11-19 08:10:12,934 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 993 transitions. Word has length 11 [2022-11-19 08:10:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:12,934 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 993 transitions. [2022-11-19 08:10:12,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 993 transitions. [2022-11-19 08:10:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:12,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:12,935 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:12,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2022-11-19 08:10:13,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:13,147 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash 17543373, now seen corresponding path program 5 times [2022-11-19 08:10:13,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:13,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005315176] [2022-11-19 08:10:13,148 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:10:13,148 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:13,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:13,149 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:13,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-19 08:10:13,249 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:13,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:13,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:13,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:13,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:13,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:13,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005315176] [2022-11-19 08:10:13,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005315176] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:13,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [94598669] [2022-11-19 08:10:13,561 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:10:13,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:13,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:13,563 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:13,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2022-11-19 08:10:13,781 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:13,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:13,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:13,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:13,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:13,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [94598669] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:13,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734911075] [2022-11-19 08:10:13,921 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:10:13,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:13,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:13,923 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:13,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2022-11-19 08:10:14,052 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:14,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:14,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:14,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:14,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:14,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734911075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:14,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:14,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2022-11-19 08:10:14,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829510408] [2022-11-19 08:10:14,197 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:14,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:10:14,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:14,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:10:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:10:14,199 INFO L87 Difference]: Start difference. First operand 364 states and 993 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:14,783 INFO L93 Difference]: Finished difference Result 724 states and 1937 transitions. [2022-11-19 08:10:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:10:14,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:14,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:14,788 INFO L225 Difference]: With dead ends: 724 [2022-11-19 08:10:14,788 INFO L226 Difference]: Without dead ends: 724 [2022-11-19 08:10:14,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:10:14,789 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:14,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 0 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:10:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-11-19 08:10:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 419. [2022-11-19 08:10:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 417 states have (on average 2.853717026378897) internal successors, (1190), 418 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 1190 transitions. [2022-11-19 08:10:14,804 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 1190 transitions. Word has length 11 [2022-11-19 08:10:14,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:14,804 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 1190 transitions. [2022-11-19 08:10:14,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:14,804 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 1190 transitions. [2022-11-19 08:10:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:14,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:14,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:14,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2022-11-19 08:10:15,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-11-19 08:10:15,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:15,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:15,412 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:15,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash 17543131, now seen corresponding path program 2 times [2022-11-19 08:10:15,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:15,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701723522] [2022-11-19 08:10:15,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:15,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:15,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:15,413 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:15,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-19 08:10:15,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:10:15,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:15,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:15,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:15,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:15,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:15,646 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:15,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701723522] [2022-11-19 08:10:15,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701723522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:15,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:15,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:15,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409075939] [2022-11-19 08:10:15,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:15,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:15,647 INFO L87 Difference]: Start difference. First operand 419 states and 1190 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:15,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:15,660 INFO L93 Difference]: Finished difference Result 440 states and 1241 transitions. [2022-11-19 08:10:15,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:15,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:15,663 INFO L225 Difference]: With dead ends: 440 [2022-11-19 08:10:15,663 INFO L226 Difference]: Without dead ends: 440 [2022-11-19 08:10:15,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:15,663 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:15,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 08:10:15,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-11-19 08:10:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 435. [2022-11-19 08:10:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 433 states have (on average 2.840646651270208) internal successors, (1230), 434 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 1230 transitions. [2022-11-19 08:10:15,675 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 1230 transitions. Word has length 11 [2022-11-19 08:10:15,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:15,675 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 1230 transitions. [2022-11-19 08:10:15,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 1230 transitions. [2022-11-19 08:10:15,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:15,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:15,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:15,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:15,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:15,888 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 17306911, now seen corresponding path program 3 times [2022-11-19 08:10:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:15,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262232850] [2022-11-19 08:10:15,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:10:15,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:15,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:15,890 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:15,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-19 08:10:16,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-19 08:10:16,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:16,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:16,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:16,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:16,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:16,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262232850] [2022-11-19 08:10:16,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262232850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:16,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:16,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:16,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265408510] [2022-11-19 08:10:16,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:16,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:16,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:16,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:16,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:16,147 INFO L87 Difference]: Start difference. First operand 435 states and 1230 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:16,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:16,165 INFO L93 Difference]: Finished difference Result 460 states and 1290 transitions. [2022-11-19 08:10:16,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:16,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:16,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:16,169 INFO L225 Difference]: With dead ends: 460 [2022-11-19 08:10:16,169 INFO L226 Difference]: Without dead ends: 460 [2022-11-19 08:10:16,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:16,170 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:16,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:10:16,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-11-19 08:10:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-11-19 08:10:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 458 states have (on average 2.816593886462882) internal successors, (1290), 459 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1290 transitions. [2022-11-19 08:10:16,183 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1290 transitions. Word has length 11 [2022-11-19 08:10:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:16,183 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 1290 transitions. [2022-11-19 08:10:16,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1290 transitions. [2022-11-19 08:10:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:16,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:16,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:16,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:16,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:16,397 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:16,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash 17478031, now seen corresponding path program 4 times [2022-11-19 08:10:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:16,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348142665] [2022-11-19 08:10:16,398 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:10:16,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:16,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:16,399 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:16,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-19 08:10:16,542 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:10:16,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:16,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:16,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:16,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:16,665 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:16,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348142665] [2022-11-19 08:10:16,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348142665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:16,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:16,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:16,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420851733] [2022-11-19 08:10:16,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:16,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:16,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:16,666 INFO L87 Difference]: Start difference. First operand 460 states and 1290 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:16,680 INFO L93 Difference]: Finished difference Result 480 states and 1339 transitions. [2022-11-19 08:10:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:16,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:16,684 INFO L225 Difference]: With dead ends: 480 [2022-11-19 08:10:16,684 INFO L226 Difference]: Without dead ends: 480 [2022-11-19 08:10:16,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:16,685 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:16,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:10:16,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-19 08:10:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2022-11-19 08:10:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 478 states have (on average 2.801255230125523) internal successors, (1339), 479 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 1339 transitions. [2022-11-19 08:10:16,697 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 1339 transitions. Word has length 11 [2022-11-19 08:10:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:16,697 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 1339 transitions. [2022-11-19 08:10:16,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 1339 transitions. [2022-11-19 08:10:16,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:16,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:16,699 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:16,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:16,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:16,912 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:16,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:16,912 INFO L85 PathProgramCache]: Analyzing trace with hash 17477969, now seen corresponding path program 6 times [2022-11-19 08:10:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:16,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227983916] [2022-11-19 08:10:16,913 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:16,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:16,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:16,914 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:16,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-19 08:10:17,028 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:10:17,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:17,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:17,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:17,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:21,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:21,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227983916] [2022-11-19 08:10:21,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227983916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:21,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [169253148] [2022-11-19 08:10:21,236 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:21,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:21,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:21,237 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:21,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2022-11-19 08:10:21,454 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:10:21,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:21,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:21,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:21,584 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_857 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_106| (_ BitVec 32)) (v_ArrVal_859 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_106| v_ArrVal_857) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_859) |v_ULTIMATE.start_main_~#id1~0#1.base_106| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_106| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_106|)))) is different from true [2022-11-19 08:10:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:21,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:21,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [169253148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:21,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595361225] [2022-11-19 08:10:21,619 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:21,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:21,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:21,621 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:21,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2022-11-19 08:10:21,745 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:10:21,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:21,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:21,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:21,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:21,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595361225] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:21,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:21,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:10:21,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951002631] [2022-11-19 08:10:21,882 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:21,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:10:21,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:10:21,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:10:21,883 INFO L87 Difference]: Start difference. First operand 480 states and 1339 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:21,901 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_857 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_106| (_ BitVec 32)) (v_ArrVal_859 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_106| v_ArrVal_857) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_859) |v_ULTIMATE.start_main_~#id1~0#1.base_106| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_106| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_106|)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_105| (_ BitVec 32)) (v_ArrVal_842 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_105| (_ bv1 1)))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_105|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_842) |v_ULTIMATE.start_main_~#id1~0#1.base_105| (_ bv0 1)) |c_#valid|) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))))) is different from true [2022-11-19 08:10:21,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:21,911 INFO L93 Difference]: Finished difference Result 483 states and 1346 transitions. [2022-11-19 08:10:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:21,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:21,914 INFO L225 Difference]: With dead ends: 483 [2022-11-19 08:10:21,914 INFO L226 Difference]: Without dead ends: 483 [2022-11-19 08:10:21,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:21,915 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:21,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:10:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-19 08:10:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 480. [2022-11-19 08:10:21,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 478 states have (on average 2.801255230125523) internal successors, (1339), 479 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:21,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 1339 transitions. [2022-11-19 08:10:21,927 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 1339 transitions. Word has length 11 [2022-11-19 08:10:21,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:21,927 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 1339 transitions. [2022-11-19 08:10:21,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 1339 transitions. [2022-11-19 08:10:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:21,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:21,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:21,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2022-11-19 08:10:22,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Ended with exit code 0 [2022-11-19 08:10:22,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:22,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:22,532 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:22,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash 73581211, now seen corresponding path program 5 times [2022-11-19 08:10:22,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:22,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139524452] [2022-11-19 08:10:22,533 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:10:22,533 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:22,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:22,534 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:22,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-19 08:10:22,652 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:10:22,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:22,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:22,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:22,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:22,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:22,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139524452] [2022-11-19 08:10:22,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139524452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:22,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:22,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:22,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391015044] [2022-11-19 08:10:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:22,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:22,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:22,769 INFO L87 Difference]: Start difference. First operand 480 states and 1339 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:22,785 INFO L93 Difference]: Finished difference Result 496 states and 1379 transitions. [2022-11-19 08:10:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:22,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:22,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:22,790 INFO L225 Difference]: With dead ends: 496 [2022-11-19 08:10:22,790 INFO L226 Difference]: Without dead ends: 496 [2022-11-19 08:10:22,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:22,790 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:22,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:10:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-11-19 08:10:22,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 480. [2022-11-19 08:10:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 478 states have (on average 2.801255230125523) internal successors, (1339), 479 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 1339 transitions. [2022-11-19 08:10:22,802 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 1339 transitions. Word has length 11 [2022-11-19 08:10:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:22,803 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 1339 transitions. [2022-11-19 08:10:22,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:22,803 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 1339 transitions. [2022-11-19 08:10:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:22,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:22,804 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:22,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2022-11-19 08:10:23,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:23,015 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:23,016 INFO L85 PathProgramCache]: Analyzing trace with hash 73581149, now seen corresponding path program 7 times [2022-11-19 08:10:23,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:23,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112343436] [2022-11-19 08:10:23,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:23,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:23,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:23,017 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:23,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-19 08:10:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:23,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:23,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:23,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:23,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:27,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:27,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112343436] [2022-11-19 08:10:27,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112343436] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:27,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [777756851] [2022-11-19 08:10:27,319 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:27,319 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:27,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:27,323 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:27,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2022-11-19 08:10:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:27,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:27,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:27,739 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_110| (_ BitVec 32)) (v_ArrVal_923 (_ BitVec 1)) (v_ArrVal_922 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_110| v_ArrVal_923) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_922) |v_ULTIMATE.start_main_~#id1~0#1.base_110| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_110|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_110| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:10:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:27,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:27,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [777756851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:27,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034177214] [2022-11-19 08:10:27,795 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:27,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:27,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:27,798 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:27,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2022-11-19 08:10:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:27,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:27,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:28,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:28,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034177214] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:28,059 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:28,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:10:28,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853272614] [2022-11-19 08:10:28,060 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:28,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:10:28,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:28,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:10:28,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:10:28,061 INFO L87 Difference]: Start difference. First operand 480 states and 1339 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:28,074 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_110| (_ BitVec 32)) (v_ArrVal_923 (_ BitVec 1)) (v_ArrVal_922 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_110| v_ArrVal_923) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_922) |v_ULTIMATE.start_main_~#id1~0#1.base_110| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_110|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_110| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) (exists ((v_ArrVal_907 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_109| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_109| (_ bv1 1)))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_109|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_907) |v_ULTIMATE.start_main_~#id1~0#1.base_109| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)))))) is different from true [2022-11-19 08:10:28,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:28,083 INFO L93 Difference]: Finished difference Result 477 states and 1329 transitions. [2022-11-19 08:10:28,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:28,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:28,087 INFO L225 Difference]: With dead ends: 477 [2022-11-19 08:10:28,087 INFO L226 Difference]: Without dead ends: 477 [2022-11-19 08:10:28,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:28,088 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:28,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-11-19 08:10:28,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-19 08:10:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 470. [2022-11-19 08:10:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 468 states have (on average 2.8055555555555554) internal successors, (1313), 469 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1313 transitions. [2022-11-19 08:10:28,099 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1313 transitions. Word has length 11 [2022-11-19 08:10:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:28,100 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 1313 transitions. [2022-11-19 08:10:28,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:28,100 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1313 transitions. [2022-11-19 08:10:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:28,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:28,101 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:28,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:28,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2022-11-19 08:10:28,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:28,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:28,708 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash -784132437, now seen corresponding path program 6 times [2022-11-19 08:10:28,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:28,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035517650] [2022-11-19 08:10:28,708 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:28,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:28,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:28,709 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:28,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-19 08:10:28,816 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:10:28,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:28,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:28,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:28,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:29,113 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:29,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035517650] [2022-11-19 08:10:29,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035517650] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:29,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1435424004] [2022-11-19 08:10:29,113 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:29,113 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:29,114 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:29,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2022-11-19 08:10:29,334 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:10:29,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:29,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:29,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:29,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:29,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1435424004] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:29,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823375819] [2022-11-19 08:10:29,457 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:29,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:29,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:29,459 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:29,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2022-11-19 08:10:29,601 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:10:29,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:29,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:29,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:29,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:29,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823375819] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:29,720 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:29,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2022-11-19 08:10:29,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917068507] [2022-11-19 08:10:29,721 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:29,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:10:29,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:29,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:10:29,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:10:29,723 INFO L87 Difference]: Start difference. First operand 470 states and 1313 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:30,692 INFO L93 Difference]: Finished difference Result 1255 states and 3349 transitions. [2022-11-19 08:10:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:10:30,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:30,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:30,700 INFO L225 Difference]: With dead ends: 1255 [2022-11-19 08:10:30,700 INFO L226 Difference]: Without dead ends: 1255 [2022-11-19 08:10:30,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:10:30,700 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 125 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:30,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 0 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:10:30,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2022-11-19 08:10:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 482. [2022-11-19 08:10:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 480 states have (on average 2.845833333333333) internal successors, (1366), 481 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1366 transitions. [2022-11-19 08:10:30,720 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1366 transitions. Word has length 11 [2022-11-19 08:10:30,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:30,721 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 1366 transitions. [2022-11-19 08:10:30,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1366 transitions. [2022-11-19 08:10:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:30,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:30,722 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:30,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (71)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:30,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2022-11-19 08:10:31,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Ended with exit code 0 [2022-11-19 08:10:31,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:31,325 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -783208017, now seen corresponding path program 7 times [2022-11-19 08:10:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:31,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886142662] [2022-11-19 08:10:31,326 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:31,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:31,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:31,327 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:31,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-19 08:10:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:31,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:31,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:31,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:31,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:31,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886142662] [2022-11-19 08:10:31,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886142662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:31,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1858260678] [2022-11-19 08:10:31,712 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:31,712 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:31,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:31,713 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:31,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2022-11-19 08:10:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:31,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:31,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:31,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:31,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:32,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:32,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1858260678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:32,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457116898] [2022-11-19 08:10:32,057 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:32,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:32,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:32,058 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:32,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2022-11-19 08:10:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:32,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:32,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:32,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:32,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457116898] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:32,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:32,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2022-11-19 08:10:32,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887255323] [2022-11-19 08:10:32,298 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:32,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:10:32,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:10:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:10:32,299 INFO L87 Difference]: Start difference. First operand 482 states and 1366 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:33,280 INFO L93 Difference]: Finished difference Result 1081 states and 2972 transitions. [2022-11-19 08:10:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:10:33,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:33,284 INFO L225 Difference]: With dead ends: 1081 [2022-11-19 08:10:33,284 INFO L226 Difference]: Without dead ends: 1081 [2022-11-19 08:10:33,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:10:33,285 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 132 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:33,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 0 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:10:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-19 08:10:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 474. [2022-11-19 08:10:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 472 states have (on average 2.8495762711864407) internal successors, (1345), 473 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 1345 transitions. [2022-11-19 08:10:33,301 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 1345 transitions. Word has length 11 [2022-11-19 08:10:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:33,301 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 1345 transitions. [2022-11-19 08:10:33,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 1345 transitions. [2022-11-19 08:10:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:33,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:33,303 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:33,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2022-11-19 08:10:33,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (74)] Ended with exit code 0 [2022-11-19 08:10:33,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Ended with exit code 0 [2022-11-19 08:10:33,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:33,909 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:33,910 INFO L85 PathProgramCache]: Analyzing trace with hash -784997399, now seen corresponding path program 8 times [2022-11-19 08:10:33,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:33,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83217104] [2022-11-19 08:10:33,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:33,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:33,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:33,911 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:33,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-19 08:10:34,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:34,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:34,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:34,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:34,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:34,295 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:34,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83217104] [2022-11-19 08:10:34,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [83217104] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:34,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1544725168] [2022-11-19 08:10:34,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:34,295 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:34,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:34,298 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:34,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2022-11-19 08:10:34,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:34,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:34,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:34,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:34,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:34,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1544725168] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:34,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041737162] [2022-11-19 08:10:34,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:34,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:34,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:34,657 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:34,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2022-11-19 08:10:34,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:34,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:34,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:10:34,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:34,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:34,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:34,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041737162] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:34,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:34,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 10 [2022-11-19 08:10:34,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313684502] [2022-11-19 08:10:34,892 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:34,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:10:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:10:34,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:10:34,893 INFO L87 Difference]: Start difference. First operand 474 states and 1345 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:35,703 INFO L93 Difference]: Finished difference Result 930 states and 2535 transitions. [2022-11-19 08:10:35,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 08:10:35,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:35,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:35,708 INFO L225 Difference]: With dead ends: 930 [2022-11-19 08:10:35,708 INFO L226 Difference]: Without dead ends: 930 [2022-11-19 08:10:35,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:10:35,709 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 135 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:35,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 0 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:10:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-11-19 08:10:35,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 484. [2022-11-19 08:10:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 482 states have (on average 2.933609958506224) internal successors, (1414), 483 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 1414 transitions. [2022-11-19 08:10:35,723 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 1414 transitions. Word has length 11 [2022-11-19 08:10:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:35,724 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 1414 transitions. [2022-11-19 08:10:35,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 1414 transitions. [2022-11-19 08:10:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:35,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:35,725 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:35,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:35,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2022-11-19 08:10:36,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (77)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:36,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:36,337 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:36,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:36,337 INFO L85 PathProgramCache]: Analyzing trace with hash 2018512939, now seen corresponding path program 8 times [2022-11-19 08:10:36,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:36,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961275216] [2022-11-19 08:10:36,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:36,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:36,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:36,339 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:36,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-19 08:10:36,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:36,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:36,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:36,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:36,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:40,642 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:40,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961275216] [2022-11-19 08:10:40,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961275216] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:40,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1158829805] [2022-11-19 08:10:40,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:40,643 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:40,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:40,643 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:40,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2022-11-19 08:10:40,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:40,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:40,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:40,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:40,983 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1052 (_ BitVec 1)) (v_ArrVal_1051 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_113| (_ BitVec 32))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_113| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_113| v_ArrVal_1052) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1051) |v_ULTIMATE.start_main_~#id1~0#1.base_113| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_113|)))) is different from true [2022-11-19 08:10:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:41,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:41,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1158829805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:41,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100861829] [2022-11-19 08:10:41,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:41,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:41,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:41,028 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:41,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2022-11-19 08:10:41,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:41,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:41,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:41,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:41,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:41,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:41,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100861829] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:41,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:41,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:10:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709801823] [2022-11-19 08:10:41,342 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:41,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:10:41,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:41,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:10:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:10:41,343 INFO L87 Difference]: Start difference. First operand 484 states and 1414 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:41,365 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1052 (_ BitVec 1)) (v_ArrVal_1051 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_113| (_ BitVec 32))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_113| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_113| v_ArrVal_1052) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1051) |v_ULTIMATE.start_main_~#id1~0#1.base_113| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_113|)))) (exists ((v_ArrVal_1034 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_112| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_112| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1034) |v_ULTIMATE.start_main_~#id1~0#1.base_112| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_112|) (_ bv0 1)))))) is different from true [2022-11-19 08:10:41,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:41,380 INFO L93 Difference]: Finished difference Result 481 states and 1404 transitions. [2022-11-19 08:10:41,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:41,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:41,383 INFO L225 Difference]: With dead ends: 481 [2022-11-19 08:10:41,384 INFO L226 Difference]: Without dead ends: 481 [2022-11-19 08:10:41,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:41,384 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:41,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-19 08:10:41,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-19 08:10:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 471. [2022-11-19 08:10:41,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 469 states have (on average 2.9445628997867805) internal successors, (1381), 470 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 1381 transitions. [2022-11-19 08:10:41,395 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 1381 transitions. Word has length 11 [2022-11-19 08:10:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:41,396 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 1381 transitions. [2022-11-19 08:10:41,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 1381 transitions. [2022-11-19 08:10:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:41,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:41,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:41,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:41,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2022-11-19 08:10:41,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:42,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:42,000 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:42,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2018458007, now seen corresponding path program 6 times [2022-11-19 08:10:42,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:42,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181428779] [2022-11-19 08:10:42,001 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:10:42,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:42,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:42,002 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:42,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-19 08:10:42,122 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-19 08:10:42,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:42,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:42,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:42,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:42,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:42,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181428779] [2022-11-19 08:10:42,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181428779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:42,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:42,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206262968] [2022-11-19 08:10:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:42,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:42,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:42,246 INFO L87 Difference]: Start difference. First operand 471 states and 1381 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:42,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:42,266 INFO L93 Difference]: Finished difference Result 498 states and 1442 transitions. [2022-11-19 08:10:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:42,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:42,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:42,269 INFO L225 Difference]: With dead ends: 498 [2022-11-19 08:10:42,269 INFO L226 Difference]: Without dead ends: 498 [2022-11-19 08:10:42,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:42,270 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:42,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:10:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-11-19 08:10:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2022-11-19 08:10:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 496 states have (on average 2.907258064516129) internal successors, (1442), 497 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 1442 transitions. [2022-11-19 08:10:42,281 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 1442 transitions. Word has length 11 [2022-11-19 08:10:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:42,281 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 1442 transitions. [2022-11-19 08:10:42,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 1442 transitions. [2022-11-19 08:10:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:42,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:42,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:42,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:42,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:42,494 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:42,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash -759849479, now seen corresponding path program 7 times [2022-11-19 08:10:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:42,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980952385] [2022-11-19 08:10:42,495 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:10:42,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:42,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:42,496 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:42,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-19 08:10:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:42,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:42,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:42,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:42,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:42,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980952385] [2022-11-19 08:10:42,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980952385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:42,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:42,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:42,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539726340] [2022-11-19 08:10:42,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:42,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:42,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:42,752 INFO L87 Difference]: Start difference. First operand 498 states and 1442 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:42,775 INFO L93 Difference]: Finished difference Result 518 states and 1491 transitions. [2022-11-19 08:10:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:42,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:10:42,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:42,778 INFO L225 Difference]: With dead ends: 518 [2022-11-19 08:10:42,778 INFO L226 Difference]: Without dead ends: 518 [2022-11-19 08:10:42,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:42,779 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:42,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:10:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-11-19 08:10:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 493. [2022-11-19 08:10:42,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 491 states have (on average 2.914460285132383) internal successors, (1431), 492 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 1431 transitions. [2022-11-19 08:10:42,795 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 1431 transitions. Word has length 11 [2022-11-19 08:10:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:42,796 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 1431 transitions. [2022-11-19 08:10:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 1431 transitions. [2022-11-19 08:10:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:10:42,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:42,797 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:42,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:43,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:43,010 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:43,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:43,010 INFO L85 PathProgramCache]: Analyzing trace with hash 543666694, now seen corresponding path program 8 times [2022-11-19 08:10:43,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:43,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220457307] [2022-11-19 08:10:43,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:43,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:43,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:43,013 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:43,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-19 08:10:43,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:43,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:43,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:10:43,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:43,262 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((v_ArrVal_1115 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_117| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_117| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1115) |v_ULTIMATE.start_main_~#id1~0#1.base_117| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_117|)))))) is different from true [2022-11-19 08:10:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:43,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:43,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:43,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220457307] [2022-11-19 08:10:43,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220457307] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:43,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [13346088] [2022-11-19 08:10:43,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:43,331 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:43,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:43,337 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:43,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (85)] Waiting until timeout for monitored process [2022-11-19 08:10:43,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:43,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:43,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:43,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:43,684 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1130 (_ BitVec 1)) (v_ArrVal_1132 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_118| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_118|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_118| v_ArrVal_1130) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1132) |v_ULTIMATE.start_main_~#id1~0#1.base_118| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_118| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:10:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:43,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:43,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [13346088] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:43,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588787100] [2022-11-19 08:10:43,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:43,732 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:43,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2022-11-19 08:10:43,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:43,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:43,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:43,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:46,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:46,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588787100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:46,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:46,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:10:46,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166190721] [2022-11-19 08:10:46,058 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:46,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:10:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:10:46,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:10:46,059 INFO L87 Difference]: Start difference. First operand 493 states and 1431 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:48,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:48,131 INFO L93 Difference]: Finished difference Result 538 states and 1535 transitions. [2022-11-19 08:10:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:10:48,131 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:10:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:48,134 INFO L225 Difference]: With dead ends: 538 [2022-11-19 08:10:48,134 INFO L226 Difference]: Without dead ends: 538 [2022-11-19 08:10:48,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=28, Invalid=49, Unknown=3, NotChecked=30, Total=110 [2022-11-19 08:10:48,135 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:48,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-11-19 08:10:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-19 08:10:48,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 503. [2022-11-19 08:10:48,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 501 states have (on average 2.8902195608782435) internal successors, (1448), 502 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:48,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 1448 transitions. [2022-11-19 08:10:48,146 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 1448 transitions. Word has length 12 [2022-11-19 08:10:48,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:48,147 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 1448 transitions. [2022-11-19 08:10:48,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:48,147 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 1448 transitions. [2022-11-19 08:10:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:10:48,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:48,148 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:48,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:48,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (85)] Ended with exit code 0 [2022-11-19 08:10:48,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Ended with exit code 0 [2022-11-19 08:10:48,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:48,755 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:48,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:48,756 INFO L85 PathProgramCache]: Analyzing trace with hash 543837814, now seen corresponding path program 9 times [2022-11-19 08:10:48,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:48,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006667663] [2022-11-19 08:10:48,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:10:48,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:48,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:48,757 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:48,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-19 08:10:48,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:10:48,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:48,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:10:48,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:49,015 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((v_ArrVal_1162 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_120| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_120| (_ bv1 1)))) (and (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1162) |v_ULTIMATE.start_main_~#id1~0#1.base_120| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_120|) (_ bv0 1)))))) is different from true [2022-11-19 08:10:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:49,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:49,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:49,072 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:49,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006667663] [2022-11-19 08:10:49,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006667663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:49,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1208375347] [2022-11-19 08:10:49,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:10:49,072 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:49,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:49,073 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:49,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-19 08:10:49,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:10:49,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:49,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:49,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:49,437 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_121| (_ BitVec 32)) (v_ArrVal_1179 (_ BitVec 1)) (v_ArrVal_1180 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_121| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_121| v_ArrVal_1180) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1179) |v_ULTIMATE.start_main_~#id1~0#1.base_121| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_121|)))) is different from true [2022-11-19 08:10:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:49,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:49,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1208375347] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:49,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371743264] [2022-11-19 08:10:49,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:10:49,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:49,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:49,478 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:49,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2022-11-19 08:10:49,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:10:49,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:49,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:49,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:51,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:51,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:51,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371743264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:51,809 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:51,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:10:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607254954] [2022-11-19 08:10:51,809 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:51,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:10:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:51,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:10:51,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:10:51,810 INFO L87 Difference]: Start difference. First operand 503 states and 1448 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:51,835 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1195 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_122| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_122| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1195) |v_ULTIMATE.start_main_~#id1~0#1.base_122| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_122|) (_ bv0 1)) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_121| (_ BitVec 32)) (v_ArrVal_1179 (_ BitVec 1)) (v_ArrVal_1180 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_121| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_121| v_ArrVal_1180) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1179) |v_ULTIMATE.start_main_~#id1~0#1.base_121| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_121|)))) (exists ((v_ArrVal_1162 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_120| (_ BitVec 32))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_120| (_ bv1 1)))) (and (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1162) |v_ULTIMATE.start_main_~#id1~0#1.base_120| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_120|) (_ bv0 1)))))) is different from true [2022-11-19 08:10:51,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:51,842 INFO L93 Difference]: Finished difference Result 535 states and 1528 transitions. [2022-11-19 08:10:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:51,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:10:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:51,846 INFO L225 Difference]: With dead ends: 535 [2022-11-19 08:10:51,846 INFO L226 Difference]: Without dead ends: 535 [2022-11-19 08:10:51,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:10:51,846 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:51,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:10:51,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-11-19 08:10:51,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 487. [2022-11-19 08:10:51,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 485 states have (on average 2.9030927835051545) internal successors, (1408), 486 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:51,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 1408 transitions. [2022-11-19 08:10:51,858 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 1408 transitions. Word has length 12 [2022-11-19 08:10:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:51,858 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 1408 transitions. [2022-11-19 08:10:51,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:51,858 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 1408 transitions. [2022-11-19 08:10:51,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:10:51,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:51,859 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:51,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-19 08:10:52,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (88)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:52,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2022-11-19 08:10:52,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:52,474 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:10:52,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:52,475 INFO L85 PathProgramCache]: Analyzing trace with hash 543837752, now seen corresponding path program 10 times [2022-11-19 08:10:52,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:52,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171933097] [2022-11-19 08:10:52,475 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:10:52,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:10:52,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:52,476 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:10:52,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-19 08:10:52,600 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:10:52,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:52,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:52,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:52,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:56,805 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:56,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171933097] [2022-11-19 08:10:56,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171933097] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:56,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1405601981] [2022-11-19 08:10:56,806 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:10:56,806 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:10:56,807 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:10:56,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (91)] Waiting until timeout for monitored process [2022-11-19 08:10:57,040 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:10:57,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:57,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:10:57,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:59,182 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_124| (_ BitVec 32)) (v_ArrVal_1228 (_ BitVec 1)) (v_ArrVal_1227 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_124| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_124|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_124| v_ArrVal_1228) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1227) |v_ULTIMATE.start_main_~#id1~0#1.base_124| (_ bv0 1))))) is different from true [2022-11-19 08:10:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:10:59,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:59,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1405601981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:59,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074853749] [2022-11-19 08:10:59,220 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:10:59,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:10:59,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:59,221 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:10:59,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2022-11-19 08:10:59,359 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:10:59,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:59,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:10:59,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:59,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:10:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:59,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074853749] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:59,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:59,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:10:59,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516739678] [2022-11-19 08:10:59,504 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:59,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:10:59,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:59,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:10:59,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:10:59,505 INFO L87 Difference]: Start difference. First operand 487 states and 1408 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:59,521 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1210 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_123| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_123| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_123|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1210) |v_ULTIMATE.start_main_~#id1~0#1.base_123| (_ bv0 1))) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_124| (_ BitVec 32)) (v_ArrVal_1228 (_ BitVec 1)) (v_ArrVal_1227 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_124| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_124|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_124| v_ArrVal_1228) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1227) |v_ULTIMATE.start_main_~#id1~0#1.base_124| (_ bv0 1)))))) is different from true [2022-11-19 08:10:59,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:59,527 INFO L93 Difference]: Finished difference Result 542 states and 1544 transitions. [2022-11-19 08:10:59,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:59,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:10:59,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:59,530 INFO L225 Difference]: With dead ends: 542 [2022-11-19 08:10:59,530 INFO L226 Difference]: Without dead ends: 542 [2022-11-19 08:10:59,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:10:59,531 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:59,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:10:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-11-19 08:10:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 515. [2022-11-19 08:10:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 513 states have (on average 2.8830409356725144) internal successors, (1479), 514 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1479 transitions. [2022-11-19 08:10:59,541 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1479 transitions. Word has length 12 [2022-11-19 08:10:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:59,542 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 1479 transitions. [2022-11-19 08:10:59,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:59,542 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1479 transitions. [2022-11-19 08:10:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:10:59,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:59,543 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:59,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:59,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Ended with exit code 0 [2022-11-19 08:10:59,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (91)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:00,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:00,150 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:00,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:00,150 INFO L85 PathProgramCache]: Analyzing trace with hash 541819652, now seen corresponding path program 11 times [2022-11-19 08:11:00,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:00,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640665532] [2022-11-19 08:11:00,151 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:11:00,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:00,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:00,154 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:00,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-19 08:11:00,287 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:00,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:00,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:00,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:00,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:04,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:04,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640665532] [2022-11-19 08:11:04,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640665532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:04,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1545210121] [2022-11-19 08:11:04,493 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:11:04,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:04,494 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:04,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (94)] Waiting until timeout for monitored process [2022-11-19 08:11:04,732 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:04,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:04,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:04,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:04,881 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1276 (_ BitVec 1)) (v_ArrVal_1275 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_127| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_127|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_127| v_ArrVal_1276) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1275) |v_ULTIMATE.start_main_~#id1~0#1.base_127| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_127| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:11:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:11:04,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:04,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1545210121] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:04,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810805290] [2022-11-19 08:11:04,929 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:11:04,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:04,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:04,930 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:04,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2022-11-19 08:11:05,066 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:05,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:05,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:11:05,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:07,142 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-19 08:11:07,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 29 [2022-11-19 08:11:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:11,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:11,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810805290] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:11,262 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:11,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:11:11,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622300670] [2022-11-19 08:11:11,262 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:11,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:11:11,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:11,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:11:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=4, NotChecked=12, Total=72 [2022-11-19 08:11:11,263 INFO L87 Difference]: Start difference. First operand 515 states and 1479 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:11,284 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1260 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_126| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_126| (_ bv1 1)))) (and (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1260) |v_ULTIMATE.start_main_~#id1~0#1.base_126| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_126|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (exists ((v_ArrVal_1276 (_ BitVec 1)) (v_ArrVal_1275 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_127| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_127|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_127| v_ArrVal_1276) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1275) |v_ULTIMATE.start_main_~#id1~0#1.base_127| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_127| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|))))) is different from true [2022-11-19 08:11:11,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:11,299 INFO L93 Difference]: Finished difference Result 570 states and 1615 transitions. [2022-11-19 08:11:11,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:11,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:11:11,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:11,302 INFO L225 Difference]: With dead ends: 570 [2022-11-19 08:11:11,302 INFO L226 Difference]: Without dead ends: 570 [2022-11-19 08:11:11,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=23, Invalid=36, Unknown=5, NotChecked=26, Total=90 [2022-11-19 08:11:11,303 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:11,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:11:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-11-19 08:11:11,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 515. [2022-11-19 08:11:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 513 states have (on average 2.8830409356725144) internal successors, (1479), 514 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 1479 transitions. [2022-11-19 08:11:11,315 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 1479 transitions. Word has length 12 [2022-11-19 08:11:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:11,315 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 1479 transitions. [2022-11-19 08:11:11,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 1479 transitions. [2022-11-19 08:11:11,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:11:11,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:11,317 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:11,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (94)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:11,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Ended with exit code 0 [2022-11-19 08:11:11,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:11,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:11,921 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:11,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2013949064, now seen corresponding path program 12 times [2022-11-19 08:11:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:11,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429303438] [2022-11-19 08:11:11,921 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:11:11,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:11,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:11,922 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:11,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-19 08:11:12,058 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:11:12,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:12,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:11:12,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:12,170 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1308 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_129| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_129| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_129|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1308) |v_ULTIMATE.start_main_~#id1~0#1.base_129| (_ bv0 1)) |c_#valid|) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:11:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:11:12,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:12,255 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:12,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429303438] [2022-11-19 08:11:12,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429303438] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:12,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1809093972] [2022-11-19 08:11:12,255 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:11:12,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:12,256 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:12,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (97)] Waiting until timeout for monitored process [2022-11-19 08:11:12,515 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:11:12,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:12,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:12,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:12,621 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_130| (_ BitVec 32)) (v_ArrVal_1324 (_ BitVec 1)) (v_ArrVal_1323 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_130| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_130| v_ArrVal_1324) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1323) |v_ULTIMATE.start_main_~#id1~0#1.base_130| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_130|)))) is different from true [2022-11-19 08:11:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:11:12,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:12,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1809093972] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:12,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039324668] [2022-11-19 08:11:12,693 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:11:12,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:12,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:12,694 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:12,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2022-11-19 08:11:12,862 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-19 08:11:12,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:12,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:12,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:12,963 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_131| (_ BitVec 32)) (v_ArrVal_1324 (_ BitVec 1)) (v_ArrVal_1323 (_ BitVec 1))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_131| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_131| v_ArrVal_1324) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1323) |v_ULTIMATE.start_main_~#id1~0#1.base_131| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_131|)))) is different from true [2022-11-19 08:11:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:11:12,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:13,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039324668] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:13,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:13,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:11:13,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108802457] [2022-11-19 08:11:13,025 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:13,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:11:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:13,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:11:13,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=21, Unknown=3, NotChecked=30, Total=72 [2022-11-19 08:11:13,027 INFO L87 Difference]: Start difference. First operand 515 states and 1479 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:15,112 INFO L93 Difference]: Finished difference Result 533 states and 1524 transitions. [2022-11-19 08:11:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:11:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:15,114 INFO L225 Difference]: With dead ends: 533 [2022-11-19 08:11:15,114 INFO L226 Difference]: Without dead ends: 533 [2022-11-19 08:11:15,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2022-11-19 08:11:15,115 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:15,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-11-19 08:11:15,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-11-19 08:11:15,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 495. [2022-11-19 08:11:15,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 493 states have (on average 2.900608519269777) internal successors, (1430), 494 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 1430 transitions. [2022-11-19 08:11:15,123 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 1430 transitions. Word has length 12 [2022-11-19 08:11:15,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:15,123 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 1430 transitions. [2022-11-19 08:11:15,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 1430 transitions. [2022-11-19 08:11:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:11:15,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:15,125 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:15,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:15,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (97)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:15,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2022-11-19 08:11:15,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:15,737 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:15,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:15,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1850607640, now seen corresponding path program 13 times [2022-11-19 08:11:15,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:15,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221155738] [2022-11-19 08:11:15,738 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:11:15,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:15,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:15,739 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:15,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-19 08:11:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:15,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:15,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:16,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:20,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:20,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221155738] [2022-11-19 08:11:20,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221155738] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:20,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [671240171] [2022-11-19 08:11:20,080 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:11:20,080 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:20,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:20,081 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:20,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (100)] Waiting until timeout for monitored process [2022-11-19 08:11:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:20,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:20,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:20,689 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1372 (_ BitVec 1)) (v_ArrVal_1371 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_133| (_ BitVec 32))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_133| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_133| v_ArrVal_1372) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1371) |v_ULTIMATE.start_main_~#id1~0#1.base_133| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_133|)))) is different from true [2022-11-19 08:11:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-19 08:11:20,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:20,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [671240171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:20,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507415199] [2022-11-19 08:11:20,749 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:11:20,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:20,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:20,750 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:20,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2022-11-19 08:11:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:20,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:20,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:21,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:21,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:21,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507415199] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:21,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:21,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:11:21,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849616021] [2022-11-19 08:11:21,042 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:21,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:11:21,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:21,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:11:21,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:11:21,043 INFO L87 Difference]: Start difference. First operand 495 states and 1430 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:21,068 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_132| (_ BitVec 32)) (v_ArrVal_1356 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_132| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_132|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1356) |v_ULTIMATE.start_main_~#id1~0#1.base_132| (_ bv0 1)) |c_#valid|)))) (exists ((v_ArrVal_1372 (_ BitVec 1)) (v_ArrVal_1371 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_133| (_ BitVec 32))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_133| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_133| v_ArrVal_1372) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1371) |v_ULTIMATE.start_main_~#id1~0#1.base_133| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_133|))))) is different from true [2022-11-19 08:11:21,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:21,081 INFO L93 Difference]: Finished difference Result 501 states and 1444 transitions. [2022-11-19 08:11:21,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:21,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-19 08:11:21,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:21,083 INFO L225 Difference]: With dead ends: 501 [2022-11-19 08:11:21,084 INFO L226 Difference]: Without dead ends: 501 [2022-11-19 08:11:21,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:11:21,084 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:21,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:11:21,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-19 08:11:21,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 486. [2022-11-19 08:11:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 484 states have (on average 2.9049586776859506) internal successors, (1406), 485 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1406 transitions. [2022-11-19 08:11:21,094 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1406 transitions. Word has length 12 [2022-11-19 08:11:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:21,094 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 1406 transitions. [2022-11-19 08:11:21,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1406 transitions. [2022-11-19 08:11:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:11:21,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:21,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:21,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (100)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:21,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-11-19 08:11:21,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2022-11-19 08:11:21,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:21,699 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:21,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:21,699 INFO L85 PathProgramCache]: Analyzing trace with hash -320896259, now seen corresponding path program 14 times [2022-11-19 08:11:21,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:21,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585940405] [2022-11-19 08:11:21,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:21,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:21,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:21,700 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:21,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-19 08:11:21,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:21,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:21,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:11:21,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:21,993 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_135| (_ BitVec 32)) (v_ArrVal_1403 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_135| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_135|)) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1403) |v_ULTIMATE.start_main_~#id1~0#1.base_135| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:11:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-19 08:11:22,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:22,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:22,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585940405] [2022-11-19 08:11:22,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585940405] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:22,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1562643366] [2022-11-19 08:11:22,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:22,072 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:22,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:22,073 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:22,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (103)] Waiting until timeout for monitored process [2022-11-19 08:11:22,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:22,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:22,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:22,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:22,461 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1419 (_ BitVec 1)) (v_ArrVal_1420 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_136| (_ BitVec 32))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_136| v_ArrVal_1420) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1419) |v_ULTIMATE.start_main_~#id1~0#1.base_136| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_136| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_136|)))) is different from true [2022-11-19 08:11:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-19 08:11:22,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:22,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1562643366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:22,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850445821] [2022-11-19 08:11:22,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:22,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:22,516 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:22,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-19 08:11:22,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:22,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:22,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:22,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:24,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:24,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850445821] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:24,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:24,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:11:24,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537904324] [2022-11-19 08:11:24,905 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:24,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:11:24,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:24,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:11:24,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:11:24,906 INFO L87 Difference]: Start difference. First operand 486 states and 1406 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:24,924 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1419 (_ BitVec 1)) (v_ArrVal_1420 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_136| (_ BitVec 32))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_136| v_ArrVal_1420) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1419) |v_ULTIMATE.start_main_~#id1~0#1.base_136| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_136| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_136|)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_137| (_ BitVec 32)) (v_ArrVal_1435 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_137| (_ bv1 1)))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_137|) (_ bv0 1)) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1435) |v_ULTIMATE.start_main_~#id1~0#1.base_137| (_ bv0 1)) |c_#valid|)))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_135| (_ BitVec 32)) (v_ArrVal_1403 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_135| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_135|)) (= (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1403) |v_ULTIMATE.start_main_~#id1~0#1.base_135| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:11:24,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:24,932 INFO L93 Difference]: Finished difference Result 497 states and 1422 transitions. [2022-11-19 08:11:24,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:24,933 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:11:24,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:24,935 INFO L225 Difference]: With dead ends: 497 [2022-11-19 08:11:24,935 INFO L226 Difference]: Without dead ends: 497 [2022-11-19 08:11:24,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:11:24,936 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:24,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:11:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-11-19 08:11:24,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 428. [2022-11-19 08:11:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 426 states have (on average 2.927230046948357) internal successors, (1247), 427 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 1247 transitions. [2022-11-19 08:11:24,946 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 1247 transitions. Word has length 13 [2022-11-19 08:11:24,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:24,947 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 1247 transitions. [2022-11-19 08:11:24,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:24,947 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 1247 transitions. [2022-11-19 08:11:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:11:24,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:24,948 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:24,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2022-11-19 08:11:25,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (102)] Ended with exit code 0 [2022-11-19 08:11:25,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (103)] Ended with exit code 0 [2022-11-19 08:11:25,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:25,555 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:25,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:25,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2048363974, now seen corresponding path program 2 times [2022-11-19 08:11:25,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:25,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562012013] [2022-11-19 08:11:25,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:25,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:25,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:25,557 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:25,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-19 08:11:25,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:25,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:25,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:25,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:25,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:25,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:25,844 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:25,844 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:25,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562012013] [2022-11-19 08:11:25,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562012013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:25,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1814849911] [2022-11-19 08:11:25,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:25,844 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:25,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:25,845 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:25,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (106)] Waiting until timeout for monitored process [2022-11-19 08:11:26,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:26,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:26,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:26,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:26,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:26,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1814849911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:26,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320809996] [2022-11-19 08:11:26,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:26,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:26,156 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:26,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-19 08:11:26,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:11:26,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:26,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:26,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:26,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:26,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:26,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320809996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:26,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:26,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-11-19 08:11:26,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768020223] [2022-11-19 08:11:26,378 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:26,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:11:26,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:26,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:11:26,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:11:26,379 INFO L87 Difference]: Start difference. First operand 428 states and 1247 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:27,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:27,047 INFO L93 Difference]: Finished difference Result 992 states and 2927 transitions. [2022-11-19 08:11:27,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:11:27,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:11:27,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:27,050 INFO L225 Difference]: With dead ends: 992 [2022-11-19 08:11:27,050 INFO L226 Difference]: Without dead ends: 992 [2022-11-19 08:11:27,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:11:27,051 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 211 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:27,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 0 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:11:27,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-11-19 08:11:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2022-11-19 08:11:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 990 states have (on average 2.9565656565656564) internal successors, (2927), 991 states have internal predecessors, (2927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 2927 transitions. [2022-11-19 08:11:27,072 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 2927 transitions. Word has length 13 [2022-11-19 08:11:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:27,072 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 2927 transitions. [2022-11-19 08:11:27,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 2927 transitions. [2022-11-19 08:11:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:11:27,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:27,074 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:27,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (105)] Ended with exit code 0 [2022-11-19 08:11:27,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:27,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (106)] Ended with exit code 0 [2022-11-19 08:11:27,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:27,675 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:27,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1303481181, now seen corresponding path program 2 times [2022-11-19 08:11:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:27,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664501641] [2022-11-19 08:11:27,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:11:27,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:27,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:27,677 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:27,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-19 08:11:27,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:11:27,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:27,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:27,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 08:11:27,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:27,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664501641] [2022-11-19 08:11:27,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664501641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:27,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:27,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:11:27,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225053580] [2022-11-19 08:11:27,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:27,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:11:27,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:27,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:11:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:11:27,950 INFO L87 Difference]: Start difference. First operand 992 states and 2927 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:27,970 INFO L93 Difference]: Finished difference Result 993 states and 2928 transitions. [2022-11-19 08:11:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:27,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:11:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:27,973 INFO L225 Difference]: With dead ends: 993 [2022-11-19 08:11:27,974 INFO L226 Difference]: Without dead ends: 993 [2022-11-19 08:11:27,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:11:27,974 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:27,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:11:27,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-11-19 08:11:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 992. [2022-11-19 08:11:27,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 990 states have (on average 2.9565656565656564) internal successors, (2927), 991 states have internal predecessors, (2927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 2927 transitions. [2022-11-19 08:11:27,998 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 2927 transitions. Word has length 13 [2022-11-19 08:11:27,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:27,999 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 2927 transitions. [2022-11-19 08:11:27,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 2927 transitions. [2022-11-19 08:11:27,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:11:27,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:28,000 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:28,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-11-19 08:11:28,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:28,206 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:28,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1303476531, now seen corresponding path program 3 times [2022-11-19 08:11:28,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:28,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178248254] [2022-11-19 08:11:28,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:11:28,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:28,208 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:28,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2022-11-19 08:11:28,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:11:28,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:28,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:11:28,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:28,493 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_139| (_ BitVec 32)) (v_ArrVal_1499 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_139| (_ bv1 1)))) (and (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1499) |v_ULTIMATE.start_main_~#id1~0#1.base_139| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_139|) (_ bv0 1)))))) is different from true [2022-11-19 08:11:28,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 4 not checked. [2022-11-19 08:11:28,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:11:28,558 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:28,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178248254] [2022-11-19 08:11:28,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178248254] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:28,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1302580284] [2022-11-19 08:11:28,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:11:28,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:28,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:28,560 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:28,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (110)] Waiting until timeout for monitored process [2022-11-19 08:11:28,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:11:28,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:28,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:28,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:28,963 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_140| (_ BitVec 32)) (v_ArrVal_1516 (_ BitVec 1)) (v_ArrVal_1515 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_140| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_140|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_140| v_ArrVal_1516) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1515) |v_ULTIMATE.start_main_~#id1~0#1.base_140| (_ bv0 1))))) is different from true [2022-11-19 08:11:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 4 not checked. [2022-11-19 08:11:28,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:11:29,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1302580284] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:29,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897480886] [2022-11-19 08:11:29,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:11:29,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:29,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:29,023 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:29,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2022-11-19 08:11:29,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:11:29,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:29,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:29,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:11:31,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 08:11:31,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897480886] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:31,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:31,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:11:31,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056789426] [2022-11-19 08:11:31,372 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:31,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:11:31,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:31,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:11:31,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:11:31,373 INFO L87 Difference]: Start difference. First operand 992 states and 2927 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:31,393 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_140| (_ BitVec 32)) (v_ArrVal_1516 (_ BitVec 1)) (v_ArrVal_1515 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_140| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_140|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_140| v_ArrVal_1516) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1515) |v_ULTIMATE.start_main_~#id1~0#1.base_140| (_ bv0 1))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_141| (_ BitVec 32)) (v_ArrVal_1532 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_141| (_ bv1 1)))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_141|) (_ bv0 1)) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1532) |v_ULTIMATE.start_main_~#id1~0#1.base_141| (_ bv0 1)) |c_#valid|)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_139| (_ BitVec 32)) (v_ArrVal_1499 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_139| (_ bv1 1)))) (and (= (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1499) |v_ULTIMATE.start_main_~#id1~0#1.base_139| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_139|) (_ bv0 1)))))) is different from true [2022-11-19 08:11:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:31,405 INFO L93 Difference]: Finished difference Result 993 states and 2928 transitions. [2022-11-19 08:11:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:11:31,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:11:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:31,407 INFO L225 Difference]: With dead ends: 993 [2022-11-19 08:11:31,407 INFO L226 Difference]: Without dead ends: 993 [2022-11-19 08:11:31,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:11:31,408 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:31,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:11:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2022-11-19 08:11:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 992. [2022-11-19 08:11:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 990 states have (on average 2.9565656565656564) internal successors, (2927), 991 states have internal predecessors, (2927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 2927 transitions. [2022-11-19 08:11:31,424 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 2927 transitions. Word has length 13 [2022-11-19 08:11:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:31,424 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 2927 transitions. [2022-11-19 08:11:31,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 2927 transitions. [2022-11-19 08:11:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:11:31,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:31,426 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:31,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:31,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (110)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:31,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (109)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:32,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:32,036 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1303707171, now seen corresponding path program 4 times [2022-11-19 08:11:32,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:32,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145993186] [2022-11-19 08:11:32,037 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:11:32,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:32,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:32,038 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:32,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2022-11-19 08:11:32,194 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:11:32,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:32,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:32,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:32,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:32,366 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145993186] [2022-11-19 08:11:32,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145993186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:32,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1203231664] [2022-11-19 08:11:32,367 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:11:32,367 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:32,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:32,368 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:32,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (113)] Waiting until timeout for monitored process [2022-11-19 08:11:32,651 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:11:32,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:32,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:32,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:32,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:32,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1203231664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:32,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848382827] [2022-11-19 08:11:32,684 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:11:32,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:32,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:32,685 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:32,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2022-11-19 08:11:32,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:11:32,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:32,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:11:32,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:32,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:32,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848382827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:32,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:32,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 12 [2022-11-19 08:11:32,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77663541] [2022-11-19 08:11:32,868 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:32,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:11:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:32,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:11:32,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:11:32,869 INFO L87 Difference]: Start difference. First operand 992 states and 2927 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:33,433 INFO L93 Difference]: Finished difference Result 2480 states and 7241 transitions. [2022-11-19 08:11:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:11:33,434 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-19 08:11:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:33,440 INFO L225 Difference]: With dead ends: 2480 [2022-11-19 08:11:33,440 INFO L226 Difference]: Without dead ends: 2480 [2022-11-19 08:11:33,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-19 08:11:33,440 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 238 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:33,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 0 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:11:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-19 08:11:33,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2480. [2022-11-19 08:11:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2478 states have (on average 2.9221146085552867) internal successors, (7241), 2479 states have internal predecessors, (7241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 7241 transitions. [2022-11-19 08:11:33,488 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 7241 transitions. Word has length 13 [2022-11-19 08:11:33,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:33,488 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 7241 transitions. [2022-11-19 08:11:33,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:33,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 7241 transitions. [2022-11-19 08:11:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:11:33,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:33,489 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:33,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2022-11-19 08:11:33,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (113)] Ended with exit code 0 [2022-11-19 08:11:33,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (112)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:34,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:34,090 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:34,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash -682416239, now seen corresponding path program 9 times [2022-11-19 08:11:34,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:34,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801422812] [2022-11-19 08:11:34,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:11:34,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:34,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:34,091 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:34,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (115)] Waiting until timeout for monitored process [2022-11-19 08:11:34,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:11:34,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:34,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:34,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:34,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:34,771 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:34,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801422812] [2022-11-19 08:11:34,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801422812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:34,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1759705909] [2022-11-19 08:11:34,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:11:34,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:34,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:34,774 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:34,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (116)] Waiting until timeout for monitored process [2022-11-19 08:11:35,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:11:35,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:35,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:35,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:35,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:35,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1759705909] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:35,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684937450] [2022-11-19 08:11:35,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:11:35,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:35,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:35,267 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:35,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2022-11-19 08:11:35,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:11:35,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:35,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:11:35,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:35,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:35,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684937450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:35,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:35,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 16 [2022-11-19 08:11:35,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201204144] [2022-11-19 08:11:35,622 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:35,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 08:11:35,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:35,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 08:11:35,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:11:35,623 INFO L87 Difference]: Start difference. First operand 2480 states and 7241 transitions. Second operand has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:38,033 INFO L93 Difference]: Finished difference Result 9067 states and 23681 transitions. [2022-11-19 08:11:38,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-19 08:11:38,033 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:11:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:38,063 INFO L225 Difference]: With dead ends: 9067 [2022-11-19 08:11:38,063 INFO L226 Difference]: Without dead ends: 9067 [2022-11-19 08:11:38,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=437, Invalid=1369, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 08:11:38,064 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 324 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:38,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 0 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:11:38,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9067 states. [2022-11-19 08:11:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9067 to 2942. [2022-11-19 08:11:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2940 states have (on average 2.9670068027210883) internal successors, (8723), 2941 states have internal predecessors, (8723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:38,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 8723 transitions. [2022-11-19 08:11:38,232 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 8723 transitions. Word has length 15 [2022-11-19 08:11:38,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:38,232 INFO L495 AbstractCegarLoop]: Abstraction has 2942 states and 8723 transitions. [2022-11-19 08:11:38,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:38,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 8723 transitions. [2022-11-19 08:11:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:11:38,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:38,234 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:38,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (116)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:38,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (115)] Ended with exit code 0 [2022-11-19 08:11:38,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:38,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:38,838 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:38,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:38,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1284307923, now seen corresponding path program 10 times [2022-11-19 08:11:38,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:38,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488547862] [2022-11-19 08:11:38,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:11:38,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:38,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:38,840 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:38,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (118)] Waiting until timeout for monitored process [2022-11-19 08:11:38,972 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:11:38,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:38,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:38,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:39,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:39,506 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:39,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:39,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488547862] [2022-11-19 08:11:39,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488547862] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:39,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [306272289] [2022-11-19 08:11:39,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:11:39,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:39,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:39,507 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:39,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (119)] Waiting until timeout for monitored process [2022-11-19 08:11:39,769 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:11:39,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:39,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:39,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:39,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:39,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [306272289] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:39,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796703875] [2022-11-19 08:11:39,949 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:11:39,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:39,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:39,950 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:39,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2022-11-19 08:11:40,153 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:11:40,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:40,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:11:40,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:40,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:40,330 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:11:40,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796703875] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:40,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:40,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 16 [2022-11-19 08:11:40,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2413361] [2022-11-19 08:11:40,331 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:40,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 08:11:40,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:40,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 08:11:40,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:11:40,332 INFO L87 Difference]: Start difference. First operand 2942 states and 8723 transitions. Second operand has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:42,795 INFO L93 Difference]: Finished difference Result 7579 states and 20699 transitions. [2022-11-19 08:11:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-19 08:11:42,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-19 08:11:42,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:42,820 INFO L225 Difference]: With dead ends: 7579 [2022-11-19 08:11:42,820 INFO L226 Difference]: Without dead ends: 7579 [2022-11-19 08:11:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 08:11:42,821 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 480 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:42,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 0 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:11:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-11-19 08:11:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 2574. [2022-11-19 08:11:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2572 states have (on average 2.949844479004666) internal successors, (7587), 2573 states have internal predecessors, (7587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:42,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 7587 transitions. [2022-11-19 08:11:42,951 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 7587 transitions. Word has length 15 [2022-11-19 08:11:42,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:42,952 INFO L495 AbstractCegarLoop]: Abstraction has 2574 states and 7587 transitions. [2022-11-19 08:11:42,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 17 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 7587 transitions. [2022-11-19 08:11:42,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:11:42,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:42,955 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:42,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:43,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (118)] Ended with exit code 0 [2022-11-19 08:11:43,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (119)] Ended with exit code 0 [2022-11-19 08:11:43,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:43,564 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:43,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:43,564 INFO L85 PathProgramCache]: Analyzing trace with hash 161515826, now seen corresponding path program 11 times [2022-11-19 08:11:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:43,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399874489] [2022-11-19 08:11:43,564 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:11:43,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:43,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:43,565 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:43,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (121)] Waiting until timeout for monitored process [2022-11-19 08:11:43,708 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-19 08:11:43,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:43,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:11:43,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:43,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:44,701 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:44,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399874489] [2022-11-19 08:11:44,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399874489] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:44,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1505445611] [2022-11-19 08:11:44,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:11:44,702 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:44,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:44,707 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:44,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (122)] Waiting until timeout for monitored process [2022-11-19 08:11:45,010 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-19 08:11:45,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:45,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:11:45,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:45,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:45,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1505445611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:45,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139392703] [2022-11-19 08:11:45,254 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:11:45,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:45,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:45,255 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:45,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2022-11-19 08:11:45,429 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-19 08:11:45,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:45,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:11:45,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:45,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:45,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139392703] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:45,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:45,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12, 12] total 24 [2022-11-19 08:11:45,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846129489] [2022-11-19 08:11:45,649 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:45,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:11:45,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:45,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:11:45,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:11:45,650 INFO L87 Difference]: Start difference. First operand 2574 states and 7587 transitions. Second operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:49,748 INFO L93 Difference]: Finished difference Result 9872 states and 25876 transitions. [2022-11-19 08:11:49,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-19 08:11:49,749 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:11:49,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:49,773 INFO L225 Difference]: With dead ends: 9872 [2022-11-19 08:11:49,773 INFO L226 Difference]: Without dead ends: 9872 [2022-11-19 08:11:49,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=722, Invalid=2470, Unknown=0, NotChecked=0, Total=3192 [2022-11-19 08:11:49,774 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 506 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:49,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 0 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:11:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9872 states. [2022-11-19 08:11:49,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9872 to 3260. [2022-11-19 08:11:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 3258 states have (on average 3.0138121546961325) internal successors, (9819), 3259 states have internal predecessors, (9819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:49,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 9819 transitions. [2022-11-19 08:11:49,930 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 9819 transitions. Word has length 18 [2022-11-19 08:11:49,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:49,931 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 9819 transitions. [2022-11-19 08:11:49,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:11:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 9819 transitions. [2022-11-19 08:11:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:11:49,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:49,935 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:49,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (122)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:50,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (121)] Forceful destruction successful, exit code 0 [2022-11-19 08:11:50,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2022-11-19 08:11:50,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:50,540 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:11:50,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash 386582296, now seen corresponding path program 12 times [2022-11-19 08:11:50,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391017167] [2022-11-19 08:11:50,541 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:11:50,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:11:50,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:50,542 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:11:50,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (124)] Waiting until timeout for monitored process [2022-11-19 08:11:50,709 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:11:50,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:50,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:11:50,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:50,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:51,746 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:51,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391017167] [2022-11-19 08:11:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391017167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:51,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1691139271] [2022-11-19 08:11:51,746 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:11:51,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:11:51,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:11:51,747 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:11:51,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (125)] Waiting until timeout for monitored process [2022-11-19 08:11:52,072 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:11:52,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:52,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:11:52,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:52,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:52,293 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:52,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1691139271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:52,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130892403] [2022-11-19 08:11:52,294 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:11:52,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:11:52,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:11:52,299 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:11:52,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2022-11-19 08:11:52,518 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:11:52,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:11:52,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:11:52,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:52,586 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:52,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:11:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:52,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130892403] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:11:52,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:11:52,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12, 12] total 24 [2022-11-19 08:11:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463259141] [2022-11-19 08:11:52,725 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:11:52,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:11:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:52,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:11:52,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:11:52,726 INFO L87 Difference]: Start difference. First operand 3260 states and 9819 transitions. Second operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:00,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:00,194 INFO L93 Difference]: Finished difference Result 11696 states and 30796 transitions. [2022-11-19 08:12:00,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-19 08:12:00,198 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:12:00,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:00,227 INFO L225 Difference]: With dead ends: 11696 [2022-11-19 08:12:00,227 INFO L226 Difference]: Without dead ends: 11696 [2022-11-19 08:12:00,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1571 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1304, Invalid=4702, Unknown=0, NotChecked=0, Total=6006 [2022-11-19 08:12:00,228 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 661 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:00,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 0 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:12:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11696 states. [2022-11-19 08:12:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11696 to 3359. [2022-11-19 08:12:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 3357 states have (on average 3.067322013702711) internal successors, (10297), 3358 states have internal predecessors, (10297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:00,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 10297 transitions. [2022-11-19 08:12:00,403 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 10297 transitions. Word has length 18 [2022-11-19 08:12:00,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:00,403 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 10297 transitions. [2022-11-19 08:12:00,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 10297 transitions. [2022-11-19 08:12:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:12:00,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:00,407 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:00,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:00,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (124)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:00,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (125)] Ended with exit code 0 [2022-11-19 08:12:01,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:01,015 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:01,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash 297740832, now seen corresponding path program 13 times [2022-11-19 08:12:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:01,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514915559] [2022-11-19 08:12:01,016 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:12:01,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:01,017 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:01,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (127)] Waiting until timeout for monitored process [2022-11-19 08:12:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:01,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:12:01,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:01,383 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:01,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:02,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:02,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514915559] [2022-11-19 08:12:02,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514915559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:02,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1394586127] [2022-11-19 08:12:02,182 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:12:02,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:02,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:02,184 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:02,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (128)] Waiting until timeout for monitored process [2022-11-19 08:12:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:02,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:12:02,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:02,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:02,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:02,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1394586127] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:02,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194971028] [2022-11-19 08:12:02,733 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:12:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:02,737 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:02,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Waiting until timeout for monitored process [2022-11-19 08:12:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:02,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:12:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:02,979 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:02,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:03,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194971028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:03,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:03,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12, 12] total 24 [2022-11-19 08:12:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341364040] [2022-11-19 08:12:03,148 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:03,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:12:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:12:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:12:03,149 INFO L87 Difference]: Start difference. First operand 3359 states and 10297 transitions. Second operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:12,935 INFO L93 Difference]: Finished difference Result 9770 states and 25834 transitions. [2022-11-19 08:12:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-19 08:12:12,936 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:12:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:12,953 INFO L225 Difference]: With dead ends: 9770 [2022-11-19 08:12:12,953 INFO L226 Difference]: Without dead ends: 9770 [2022-11-19 08:12:12,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1722 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1486, Invalid=4994, Unknown=0, NotChecked=0, Total=6480 [2022-11-19 08:12:12,954 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 773 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:12,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 0 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 08:12:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9770 states. [2022-11-19 08:12:13,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9770 to 3441. [2022-11-19 08:12:13,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3439 states have (on average 3.0904332654841524) internal successors, (10628), 3440 states have internal predecessors, (10628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 10628 transitions. [2022-11-19 08:12:13,117 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 10628 transitions. Word has length 18 [2022-11-19 08:12:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:13,117 INFO L495 AbstractCegarLoop]: Abstraction has 3441 states and 10628 transitions. [2022-11-19 08:12:13,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 10628 transitions. [2022-11-19 08:12:13,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:12:13,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:13,121 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:13,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:13,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (127)] Ended with exit code 0 [2022-11-19 08:12:13,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (128)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:13,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:13,729 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:13,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:13,729 INFO L85 PathProgramCache]: Analyzing trace with hash 298665252, now seen corresponding path program 14 times [2022-11-19 08:12:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:13,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819324256] [2022-11-19 08:12:13,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:13,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:13,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:13,730 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:13,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (130)] Waiting until timeout for monitored process [2022-11-19 08:12:13,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:12:13,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:13,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:12:13,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:14,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:14,868 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:14,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819324256] [2022-11-19 08:12:14,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819324256] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:14,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [558676843] [2022-11-19 08:12:14,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:14,868 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:14,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:14,869 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:14,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (131)] Waiting until timeout for monitored process [2022-11-19 08:12:15,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:12:15,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:15,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:12:15,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:15,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:15,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [558676843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:15,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728755071] [2022-11-19 08:12:15,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:15,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:15,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:15,394 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:15,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Waiting until timeout for monitored process [2022-11-19 08:12:15,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:12:15,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:15,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 08:12:15,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:15,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:15,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728755071] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:15,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:15,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12, 12] total 24 [2022-11-19 08:12:15,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992506479] [2022-11-19 08:12:15,749 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:15,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:12:15,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:12:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:12:15,750 INFO L87 Difference]: Start difference. First operand 3441 states and 10628 transitions. Second operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:21,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:21,691 INFO L93 Difference]: Finished difference Result 7499 states and 19242 transitions. [2022-11-19 08:12:21,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-19 08:12:21,692 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-19 08:12:21,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:21,704 INFO L225 Difference]: With dead ends: 7499 [2022-11-19 08:12:21,704 INFO L226 Difference]: Without dead ends: 7499 [2022-11-19 08:12:21,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1049, Invalid=3241, Unknown=0, NotChecked=0, Total=4290 [2022-11-19 08:12:21,705 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 582 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:21,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 0 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 08:12:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7499 states. [2022-11-19 08:12:21,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7499 to 3259. [2022-11-19 08:12:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 3257 states have (on average 3.038992938286767) internal successors, (9898), 3258 states have internal predecessors, (9898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 9898 transitions. [2022-11-19 08:12:21,817 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 9898 transitions. Word has length 18 [2022-11-19 08:12:21,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:21,817 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 9898 transitions. [2022-11-19 08:12:21,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 9898 transitions. [2022-11-19 08:12:21,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:12:21,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:21,821 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:21,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:22,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (130)] Ended with exit code 0 [2022-11-19 08:12:22,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (131)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:22,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:22,428 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:22,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:22,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1500744346, now seen corresponding path program 3 times [2022-11-19 08:12:22,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:22,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583161764] [2022-11-19 08:12:22,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:22,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:22,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:22,430 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:22,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (133)] Waiting until timeout for monitored process [2022-11-19 08:12:22,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:12:22,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:22,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:12:22,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:22,692 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_142| (_ BitVec 32)) (v_ArrVal_1743 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_142| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_142|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1743) |v_ULTIMATE.start_main_~#id1~0#1.base_142| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)))))) is different from true [2022-11-19 08:12:22,817 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:22,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:22,879 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:22,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:22,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583161764] [2022-11-19 08:12:22,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583161764] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:22,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [164862602] [2022-11-19 08:12:22,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:22,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:22,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:22,881 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:22,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (134)] Waiting until timeout for monitored process [2022-11-19 08:12:23,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:12:23,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:23,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:23,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:23,275 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1759 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_143| (_ BitVec 32)) (v_ArrVal_1760 (_ BitVec 1))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_143|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_143| v_ArrVal_1760) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1759) |v_ULTIMATE.start_main_~#id1~0#1.base_143| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_143| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))) is different from true [2022-11-19 08:12:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:23,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:23,432 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:23,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [164862602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:23,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835297958] [2022-11-19 08:12:23,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:23,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:23,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:23,433 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:23,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Waiting until timeout for monitored process [2022-11-19 08:12:23,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:12:23,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:23,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:23,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:25,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:25,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835297958] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:25,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:25,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:12:25,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873596092] [2022-11-19 08:12:25,871 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:25,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:12:25,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:25,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:12:25,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:12:25,872 INFO L87 Difference]: Start difference. First operand 3259 states and 9898 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:25,890 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1759 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_143| (_ BitVec 32)) (v_ArrVal_1760 (_ BitVec 1))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_143|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_143| v_ArrVal_1760) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1759) |v_ULTIMATE.start_main_~#id1~0#1.base_143| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_143| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_142| (_ BitVec 32)) (v_ArrVal_1743 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_142| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_142|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1743) |v_ULTIMATE.start_main_~#id1~0#1.base_142| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_144| (_ BitVec 32)) (v_ArrVal_1775 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_144| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_144|)) (= (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1775) |v_ULTIMATE.start_main_~#id1~0#1.base_144| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:12:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:25,920 INFO L93 Difference]: Finished difference Result 3260 states and 9899 transitions. [2022-11-19 08:12:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:12:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:25,926 INFO L225 Difference]: With dead ends: 3260 [2022-11-19 08:12:25,927 INFO L226 Difference]: Without dead ends: 3260 [2022-11-19 08:12:25,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:12:25,927 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:25,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-11-19 08:12:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2022-11-19 08:12:25,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3249. [2022-11-19 08:12:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3247 states have (on average 3.0418848167539267) internal successors, (9877), 3248 states have internal predecessors, (9877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 9877 transitions. [2022-11-19 08:12:25,994 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 9877 transitions. Word has length 19 [2022-11-19 08:12:25,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:25,995 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 9877 transitions. [2022-11-19 08:12:25,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 9877 transitions. [2022-11-19 08:12:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:12:25,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:25,998 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:26,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (133)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:26,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (134)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:26,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Ended with exit code 0 [2022-11-19 08:12:26,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:26,611 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash -726259378, now seen corresponding path program 4 times [2022-11-19 08:12:26,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:26,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252902736] [2022-11-19 08:12:26,612 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:12:26,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:26,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:26,613 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:26,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (136)] Waiting until timeout for monitored process [2022-11-19 08:12:26,776 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:12:26,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:26,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:26,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:12:27,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:27,002 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:27,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252902736] [2022-11-19 08:12:27,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252902736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:27,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:27,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:12:27,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673200364] [2022-11-19 08:12:27,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:27,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:12:27,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:27,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:12:27,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:27,004 INFO L87 Difference]: Start difference. First operand 3249 states and 9877 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:27,075 INFO L93 Difference]: Finished difference Result 3258 states and 9896 transitions. [2022-11-19 08:12:27,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:27,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:12:27,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:27,083 INFO L225 Difference]: With dead ends: 3258 [2022-11-19 08:12:27,083 INFO L226 Difference]: Without dead ends: 3258 [2022-11-19 08:12:27,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:27,084 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:27,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:12:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2022-11-19 08:12:27,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 3247. [2022-11-19 08:12:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3245 states have (on average 3.0428351309707242) internal successors, (9874), 3246 states have internal predecessors, (9874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 9874 transitions. [2022-11-19 08:12:27,151 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 9874 transitions. Word has length 19 [2022-11-19 08:12:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:27,152 INFO L495 AbstractCegarLoop]: Abstraction has 3247 states and 9874 transitions. [2022-11-19 08:12:27,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 9874 transitions. [2022-11-19 08:12:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:12:27,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:27,156 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:27,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (136)] Ended with exit code 0 [2022-11-19 08:12:27,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:27,368 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash 931436093, now seen corresponding path program 5 times [2022-11-19 08:12:27,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:27,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887482901] [2022-11-19 08:12:27,369 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:12:27,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:27,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:27,370 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:27,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (137)] Waiting until timeout for monitored process [2022-11-19 08:12:27,545 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:12:27,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:27,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:27,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:27,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:31,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:31,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887482901] [2022-11-19 08:12:31,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887482901] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:31,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [306072570] [2022-11-19 08:12:31,864 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:12:31,864 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:31,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:31,865 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:31,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (138)] Waiting until timeout for monitored process [2022-11-19 08:12:32,178 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:12:32,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:32,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:32,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:32,583 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_147| (_ BitVec 32)) (v_ArrVal_1824 (_ BitVec 1)) (v_ArrVal_1823 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_147| v_ArrVal_1824) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1823) |v_ULTIMATE.start_main_~#id1~0#1.base_147| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_147|)) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_147| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))) is different from true [2022-11-19 08:12:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:12:32,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:32,658 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:32,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [306072570] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:32,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249259264] [2022-11-19 08:12:32,659 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:12:32,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:32,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:32,660 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:32,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Waiting until timeout for monitored process [2022-11-19 08:12:32,848 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:12:32,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:32,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:32,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:35,048 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_148| (_ BitVec 32)) (v_ArrVal_1824 (_ BitVec 1)) (v_ArrVal_1823 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_148| v_ArrVal_1824) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1823) |v_ULTIMATE.start_main_~#id1~0#1.base_148| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_148| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_148|) (_ bv0 1)))) is different from true [2022-11-19 08:12:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:12:35,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:35,126 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:35,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249259264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:35,127 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:35,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:12:35,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856568247] [2022-11-19 08:12:35,127 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:35,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:12:35,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:35,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:12:35,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:12:35,128 INFO L87 Difference]: Start difference. First operand 3247 states and 9874 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:35,150 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_148| (_ BitVec 32)) (v_ArrVal_1824 (_ BitVec 1)) (v_ArrVal_1823 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_148| v_ArrVal_1824) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1823) |v_ULTIMATE.start_main_~#id1~0#1.base_148| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_148| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_148|) (_ bv0 1)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_146| (_ BitVec 32)) (v_ArrVal_1807 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_146| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1807) |v_ULTIMATE.start_main_~#id1~0#1.base_146| (_ bv0 1))) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_146|))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_147| (_ BitVec 32)) (v_ArrVal_1824 (_ BitVec 1)) (v_ArrVal_1823 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_147| v_ArrVal_1824) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1823) |v_ULTIMATE.start_main_~#id1~0#1.base_147| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_147|)) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_147| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1))))) is different from true [2022-11-19 08:12:35,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:35,170 INFO L93 Difference]: Finished difference Result 3247 states and 9873 transitions. [2022-11-19 08:12:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:35,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-19 08:12:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:35,176 INFO L225 Difference]: With dead ends: 3247 [2022-11-19 08:12:35,176 INFO L226 Difference]: Without dead ends: 3247 [2022-11-19 08:12:35,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=21, Invalid=29, Unknown=4, NotChecked=36, Total=90 [2022-11-19 08:12:35,176 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:35,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-19 08:12:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-11-19 08:12:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3236. [2022-11-19 08:12:35,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3236 states, 3234 states have (on average 3.046382189239332) internal successors, (9852), 3235 states have internal predecessors, (9852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:35,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3236 states to 3236 states and 9852 transitions. [2022-11-19 08:12:35,220 INFO L78 Accepts]: Start accepts. Automaton has 3236 states and 9852 transitions. Word has length 19 [2022-11-19 08:12:35,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:35,220 INFO L495 AbstractCegarLoop]: Abstraction has 3236 states and 9852 transitions. [2022-11-19 08:12:35,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:35,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3236 states and 9852 transitions. [2022-11-19 08:12:35,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:35,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:35,223 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:35,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (137)] Ended with exit code 0 [2022-11-19 08:12:35,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (138)] Ended with exit code 0 [2022-11-19 08:12:35,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Ended with exit code 0 [2022-11-19 08:12:35,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:35,824 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:35,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:35,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1419735031, now seen corresponding path program 1 times [2022-11-19 08:12:35,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:35,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440810121] [2022-11-19 08:12:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:35,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:35,825 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:35,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (140)] Waiting until timeout for monitored process [2022-11-19 08:12:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:35,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:35,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:12:36,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:36,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:36,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440810121] [2022-11-19 08:12:36,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440810121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:36,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:36,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:12:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885854758] [2022-11-19 08:12:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:36,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:12:36,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:36,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:12:36,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:36,214 INFO L87 Difference]: Start difference. First operand 3236 states and 9852 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:36,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:36,244 INFO L93 Difference]: Finished difference Result 3248 states and 9875 transitions. [2022-11-19 08:12:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:36,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:12:36,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:36,252 INFO L225 Difference]: With dead ends: 3248 [2022-11-19 08:12:36,252 INFO L226 Difference]: Without dead ends: 3248 [2022-11-19 08:12:36,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:36,253 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:36,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 08:12:36,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2022-11-19 08:12:36,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3237. [2022-11-19 08:12:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3235 states have (on average 3.0457496136012363) internal successors, (9853), 3236 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 9853 transitions. [2022-11-19 08:12:36,324 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 9853 transitions. Word has length 20 [2022-11-19 08:12:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:36,324 INFO L495 AbstractCegarLoop]: Abstraction has 3237 states and 9853 transitions. [2022-11-19 08:12:36,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:36,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 9853 transitions. [2022-11-19 08:12:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:36,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:36,327 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:36,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (140)] Ended with exit code 0 [2022-11-19 08:12:36,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:36,528 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:36,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:36,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1419739681, now seen corresponding path program 2 times [2022-11-19 08:12:36,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:36,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475368333] [2022-11-19 08:12:36,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:36,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:36,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:36,529 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:36,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2022-11-19 08:12:36,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:12:36,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:36,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:12:36,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:36,924 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_150| (_ BitVec 32)) (v_ArrVal_1870 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_150| (_ bv1 1)))) (and (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_150|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1870) |v_ULTIMATE.start_main_~#id1~0#1.base_150| (_ bv0 1)))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:12:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:36,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:37,005 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:37,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475368333] [2022-11-19 08:12:37,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475368333] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:37,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1222849554] [2022-11-19 08:12:37,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:37,005 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:37,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:37,006 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:37,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (142)] Waiting until timeout for monitored process [2022-11-19 08:12:37,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:12:37,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:37,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:37,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:37,530 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_151| (_ BitVec 32)) (v_ArrVal_1888 (_ BitVec 1)) (v_ArrVal_1887 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_151| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_151|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_151| v_ArrVal_1888) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1887) |v_ULTIMATE.start_main_~#id1~0#1.base_151| (_ bv0 1))))) is different from true [2022-11-19 08:12:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:37,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:37,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1222849554] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:37,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845303987] [2022-11-19 08:12:37,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:37,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:37,593 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:37,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-19 08:12:37,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:12:37,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:37,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:37,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:40,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:40,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845303987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:40,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:40,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:12:40,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716392805] [2022-11-19 08:12:40,103 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:40,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:12:40,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:40,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:12:40,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:12:40,104 INFO L87 Difference]: Start difference. First operand 3237 states and 9853 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:40,122 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_150| (_ BitVec 32)) (v_ArrVal_1870 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_150| (_ bv1 1)))) (and (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_150|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1870) |v_ULTIMATE.start_main_~#id1~0#1.base_150| (_ bv0 1)))))) (exists ((v_ArrVal_1903 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_152| (_ BitVec 32))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_152| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_152|)) (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1903) |v_ULTIMATE.start_main_~#id1~0#1.base_152| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_151| (_ BitVec 32)) (v_ArrVal_1888 (_ BitVec 1)) (v_ArrVal_1887 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_151| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_151|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_151| v_ArrVal_1888) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1887) |v_ULTIMATE.start_main_~#id1~0#1.base_151| (_ bv0 1)))))) is different from true [2022-11-19 08:12:40,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:40,141 INFO L93 Difference]: Finished difference Result 3249 states and 9876 transitions. [2022-11-19 08:12:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:40,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:12:40,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:40,148 INFO L225 Difference]: With dead ends: 3249 [2022-11-19 08:12:40,148 INFO L226 Difference]: Without dead ends: 3249 [2022-11-19 08:12:40,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:12:40,149 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:40,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-11-19 08:12:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3249 states. [2022-11-19 08:12:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3249 to 3238. [2022-11-19 08:12:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 3236 states have (on average 3.045735475896168) internal successors, (9856), 3237 states have internal predecessors, (9856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 9856 transitions. [2022-11-19 08:12:40,201 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 9856 transitions. Word has length 20 [2022-11-19 08:12:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:40,201 INFO L495 AbstractCegarLoop]: Abstraction has 3238 states and 9856 transitions. [2022-11-19 08:12:40,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 9856 transitions. [2022-11-19 08:12:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:40,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:40,204 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:40,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Ended with exit code 0 [2022-11-19 08:12:40,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (141)] Ended with exit code 0 [2022-11-19 08:12:40,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (142)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:40,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:40,811 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:40,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:40,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1419509041, now seen corresponding path program 3 times [2022-11-19 08:12:40,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:40,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952696150] [2022-11-19 08:12:40,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:40,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:40,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:40,812 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:40,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2022-11-19 08:12:40,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:12:40,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:40,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:40,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:41,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:45,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:45,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952696150] [2022-11-19 08:12:45,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952696150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:45,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [87771151] [2022-11-19 08:12:45,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:45,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:45,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:45,274 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:45,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (145)] Waiting until timeout for monitored process [2022-11-19 08:12:45,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:12:45,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:45,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:45,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:47,800 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1936 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_154| (_ BitVec 32)) (v_ArrVal_1934 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_154| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_154|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_154| v_ArrVal_1934) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1936) |v_ULTIMATE.start_main_~#id1~0#1.base_154| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:12:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:12:47,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:47,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [87771151] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:47,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252939564] [2022-11-19 08:12:47,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:47,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:47,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:47,875 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:47,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-19 08:12:48,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:12:48,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:48,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:48,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:50,293 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1936 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_155| (_ BitVec 32)) (v_ArrVal_1934 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_155| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_155| v_ArrVal_1934) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1936) |v_ULTIMATE.start_main_~#id1~0#1.base_155| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_155|) (_ bv0 1)))) is different from true [2022-11-19 08:12:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:12:50,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:12:50,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252939564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:50,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:50,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:12:50,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35045067] [2022-11-19 08:12:50,378 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:50,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:12:50,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:50,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:12:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:12:50,379 INFO L87 Difference]: Start difference. First operand 3238 states and 9856 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:50,400 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_153| (_ BitVec 32)) (v_ArrVal_1919 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_153| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1919) |v_ULTIMATE.start_main_~#id1~0#1.base_153| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_153|))))) (exists ((v_ArrVal_1936 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_154| (_ BitVec 32)) (v_ArrVal_1934 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_154| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_154|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_154| v_ArrVal_1934) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1936) |v_ULTIMATE.start_main_~#id1~0#1.base_154| (_ bv0 1)) |c_#valid|))) (exists ((v_ArrVal_1936 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_155| (_ BitVec 32)) (v_ArrVal_1934 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_155| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_155| v_ArrVal_1934) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1936) |v_ULTIMATE.start_main_~#id1~0#1.base_155| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_155|) (_ bv0 1))))) is different from true [2022-11-19 08:12:50,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:50,429 INFO L93 Difference]: Finished difference Result 3250 states and 9878 transitions. [2022-11-19 08:12:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:50,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:12:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:50,438 INFO L225 Difference]: With dead ends: 3250 [2022-11-19 08:12:50,438 INFO L226 Difference]: Without dead ends: 3250 [2022-11-19 08:12:50,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=21, Invalid=29, Unknown=4, NotChecked=36, Total=90 [2022-11-19 08:12:50,439 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:50,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:12:50,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2022-11-19 08:12:50,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3237. [2022-11-19 08:12:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3235 states have (on average 3.0457496136012363) internal successors, (9853), 3236 states have internal predecessors, (9853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 9853 transitions. [2022-11-19 08:12:50,505 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 9853 transitions. Word has length 20 [2022-11-19 08:12:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:50,505 INFO L495 AbstractCegarLoop]: Abstraction has 3237 states and 9853 transitions. [2022-11-19 08:12:50,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 9853 transitions. [2022-11-19 08:12:50,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:50,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:50,509 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:50,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (145)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:50,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (144)] Ended with exit code 0 [2022-11-19 08:12:50,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Ended with exit code 0 [2022-11-19 08:12:51,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:51,113 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:51,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1039031922, now seen corresponding path program 1 times [2022-11-19 08:12:51,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:51,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13460955] [2022-11-19 08:12:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:51,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:51,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:51,115 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:51,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2022-11-19 08:12:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:51,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:51,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:51,517 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:51,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:55,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:55,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13460955] [2022-11-19 08:12:55,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13460955] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:55,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [693385200] [2022-11-19 08:12:55,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:55,597 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:55,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:55,598 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:55,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (148)] Waiting until timeout for monitored process [2022-11-19 08:12:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:55,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:55,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:56,089 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_157| (_ BitVec 32)) (v_ArrVal_1984 (_ BitVec 1)) (v_ArrVal_1983 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_157| v_ArrVal_1984) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1983) |v_ULTIMATE.start_main_~#id1~0#1.base_157| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_157|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_157| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:12:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:56,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:56,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [693385200] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:56,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519681716] [2022-11-19 08:12:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:56,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:56,243 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:56,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-19 08:12:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:56,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:56,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:56,622 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:56,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:56,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519681716] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:56,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:56,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:12:56,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455670127] [2022-11-19 08:12:56,670 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:56,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:12:56,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:56,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:12:56,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:12:56,670 INFO L87 Difference]: Start difference. First operand 3237 states and 9853 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:56,687 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1968 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_156| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_156| (_ bv1 1)))) (and (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1968) |v_ULTIMATE.start_main_~#id1~0#1.base_156| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_156|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_157| (_ BitVec 32)) (v_ArrVal_1984 (_ BitVec 1)) (v_ArrVal_1983 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_157| v_ArrVal_1984) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1983) |v_ULTIMATE.start_main_~#id1~0#1.base_157| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_157|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_157| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|))))) is different from true [2022-11-19 08:12:56,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:56,707 INFO L93 Difference]: Finished difference Result 3259 states and 9897 transitions. [2022-11-19 08:12:56,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:56,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:12:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:56,714 INFO L225 Difference]: With dead ends: 3259 [2022-11-19 08:12:56,714 INFO L226 Difference]: Without dead ends: 3259 [2022-11-19 08:12:56,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:12:56,714 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:56,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:12:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3259 states. [2022-11-19 08:12:56,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3259 to 3248. [2022-11-19 08:12:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 3246 states have (on average 3.0422057917436844) internal successors, (9875), 3247 states have internal predecessors, (9875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 9875 transitions. [2022-11-19 08:12:56,779 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 9875 transitions. Word has length 20 [2022-11-19 08:12:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:56,779 INFO L495 AbstractCegarLoop]: Abstraction has 3248 states and 9875 transitions. [2022-11-19 08:12:56,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:56,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 9875 transitions. [2022-11-19 08:12:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:56,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:56,784 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:56,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (147)] Ended with exit code 0 [2022-11-19 08:12:56,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (148)] Ended with exit code 0 [2022-11-19 08:12:57,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Ended with exit code 0 [2022-11-19 08:12:57,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:57,385 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:57,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:57,385 INFO L85 PathProgramCache]: Analyzing trace with hash -264546954, now seen corresponding path program 2 times [2022-11-19 08:12:57,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:57,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027770559] [2022-11-19 08:12:57,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:12:57,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:57,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:57,387 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:57,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2022-11-19 08:12:57,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:12:57,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:57,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:12:57,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:57,734 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:12:57,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:12:57,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:57,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027770559] [2022-11-19 08:12:57,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027770559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:57,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:57,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:12:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047933066] [2022-11-19 08:12:57,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:57,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:12:57,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:57,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:12:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:57,736 INFO L87 Difference]: Start difference. First operand 3248 states and 9875 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:57,760 INFO L93 Difference]: Finished difference Result 3269 states and 9917 transitions. [2022-11-19 08:12:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:12:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:12:57,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:57,766 INFO L225 Difference]: With dead ends: 3269 [2022-11-19 08:12:57,767 INFO L226 Difference]: Without dead ends: 3269 [2022-11-19 08:12:57,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:12:57,767 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:57,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:12:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2022-11-19 08:12:57,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3248. [2022-11-19 08:12:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 3246 states have (on average 3.0422057917436844) internal successors, (9875), 3247 states have internal predecessors, (9875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:57,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 9875 transitions. [2022-11-19 08:12:57,834 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 9875 transitions. Word has length 20 [2022-11-19 08:12:57,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:57,834 INFO L495 AbstractCegarLoop]: Abstraction has 3248 states and 9875 transitions. [2022-11-19 08:12:57,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:57,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 9875 transitions. [2022-11-19 08:12:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:57,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:57,838 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:57,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (150)] Forceful destruction successful, exit code 0 [2022-11-19 08:12:58,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:58,050 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:12:58,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1437466114, now seen corresponding path program 3 times [2022-11-19 08:12:58,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:12:58,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500657060] [2022-11-19 08:12:58,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:58,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:12:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:12:58,052 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:12:58,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (151)] Waiting until timeout for monitored process [2022-11-19 08:12:58,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:12:58,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:58,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:12:58,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:58,344 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((v_ArrVal_2031 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_160| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_160| (_ bv1 1)))) (and (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2031) |v_ULTIMATE.start_main_~#id1~0#1.base_160| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_160|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)))))) is different from true [2022-11-19 08:12:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:58,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:58,536 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:12:58,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500657060] [2022-11-19 08:12:58,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500657060] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:58,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [853841520] [2022-11-19 08:12:58,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:58,536 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:12:58,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:12:58,537 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:12:58,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (152)] Waiting until timeout for monitored process [2022-11-19 08:12:58,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:12:58,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:58,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:58,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:58,954 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_161| (_ BitVec 32)) (v_ArrVal_2047 (_ BitVec 1)) (v_ArrVal_2048 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_161| v_ArrVal_2048) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2047) |v_ULTIMATE.start_main_~#id1~0#1.base_161| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_161|) (_ bv0 1)) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_161| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))) is different from true [2022-11-19 08:12:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:59,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:59,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [853841520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:59,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275554533] [2022-11-19 08:12:59,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:12:59,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:59,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:59,130 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:59,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (153)] Waiting until timeout for monitored process [2022-11-19 08:12:59,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:12:59,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:12:59,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:12:59,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:59,408 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_162| (_ BitVec 32)) (v_ArrVal_2047 (_ BitVec 1)) (v_ArrVal_2048 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_162| v_ArrVal_2048) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2047) |v_ULTIMATE.start_main_~#id1~0#1.base_162| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_162| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_162|)))) is different from true [2022-11-19 08:12:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:12:59,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:59,611 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:12:59,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275554533] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:59,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:12:59,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:12:59,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665756526] [2022-11-19 08:12:59,612 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:12:59,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:12:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:12:59,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:12:59,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=21, Unknown=3, NotChecked=30, Total=72 [2022-11-19 08:12:59,613 INFO L87 Difference]: Start difference. First operand 3248 states and 9875 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:59,701 INFO L93 Difference]: Finished difference Result 3401 states and 10181 transitions. [2022-11-19 08:12:59,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:12:59,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:12:59,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:59,714 INFO L225 Difference]: With dead ends: 3401 [2022-11-19 08:12:59,714 INFO L226 Difference]: Without dead ends: 3258 [2022-11-19 08:12:59,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2022-11-19 08:12:59,715 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:59,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2022-11-19 08:12:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2022-11-19 08:12:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 3248. [2022-11-19 08:12:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 3246 states have (on average 3.039125077017868) internal successors, (9865), 3247 states have internal predecessors, (9865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:59,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 9865 transitions. [2022-11-19 08:12:59,760 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 9865 transitions. Word has length 20 [2022-11-19 08:12:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:59,760 INFO L495 AbstractCegarLoop]: Abstraction has 3248 states and 9865 transitions. [2022-11-19 08:12:59,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 9865 transitions. [2022-11-19 08:12:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:12:59,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:59,764 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:59,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (152)] Ended with exit code 0 [2022-11-19 08:12:59,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (153)] Ended with exit code 0 [2022-11-19 08:13:00,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (151)] Ended with exit code 0 [2022-11-19 08:13:00,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:00,365 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:00,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:00,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1039205438, now seen corresponding path program 4 times [2022-11-19 08:13:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:00,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748602015] [2022-11-19 08:13:00,365 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:00,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:00,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:00,366 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:00,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (154)] Waiting until timeout for monitored process [2022-11-19 08:13:00,538 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:00,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:00,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:00,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:00,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:00,732 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:00,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748602015] [2022-11-19 08:13:00,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748602015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:00,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:00,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605064686] [2022-11-19 08:13:00,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:00,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:00,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:00,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:00,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:00,733 INFO L87 Difference]: Start difference. First operand 3248 states and 9865 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:00,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:00,760 INFO L93 Difference]: Finished difference Result 3250 states and 9867 transitions. [2022-11-19 08:13:00,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:00,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:13:00,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:00,767 INFO L225 Difference]: With dead ends: 3250 [2022-11-19 08:13:00,767 INFO L226 Difference]: Without dead ends: 3250 [2022-11-19 08:13:00,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:00,768 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:00,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:13:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2022-11-19 08:13:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 3249. [2022-11-19 08:13:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3247 states have (on average 3.038497074222359) internal successors, (9866), 3248 states have internal predecessors, (9866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 9866 transitions. [2022-11-19 08:13:00,848 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 9866 transitions. Word has length 20 [2022-11-19 08:13:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:00,848 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 9866 transitions. [2022-11-19 08:13:00,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 9866 transitions. [2022-11-19 08:13:00,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:13:00,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:00,852 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:00,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (154)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:01,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 154 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:01,053 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:01,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:01,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1183247575, now seen corresponding path program 4 times [2022-11-19 08:13:01,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:01,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181039977] [2022-11-19 08:13:01,054 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:01,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:01,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:01,055 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:01,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (155)] Waiting until timeout for monitored process [2022-11-19 08:13:01,237 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:01,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:01,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:01,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:01,444 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:01,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:01,444 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:01,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181039977] [2022-11-19 08:13:01,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181039977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:01,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:01,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571090706] [2022-11-19 08:13:01,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:01,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:01,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:01,447 INFO L87 Difference]: Start difference. First operand 3249 states and 9866 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:01,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:01,474 INFO L93 Difference]: Finished difference Result 3251 states and 9868 transitions. [2022-11-19 08:13:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:01,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:13:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:01,481 INFO L225 Difference]: With dead ends: 3251 [2022-11-19 08:13:01,481 INFO L226 Difference]: Without dead ends: 3251 [2022-11-19 08:13:01,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:01,482 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:01,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:13:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2022-11-19 08:13:01,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3250. [2022-11-19 08:13:01,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 3248 states have (on average 3.0378694581280787) internal successors, (9867), 3249 states have internal predecessors, (9867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 9867 transitions. [2022-11-19 08:13:01,551 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 9867 transitions. Word has length 20 [2022-11-19 08:13:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:01,551 INFO L495 AbstractCegarLoop]: Abstraction has 3250 states and 9867 transitions. [2022-11-19 08:13:01,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:01,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 9867 transitions. [2022-11-19 08:13:01,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:13:01,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:01,556 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:01,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (155)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:01,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:01,769 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:01,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1183103425, now seen corresponding path program 5 times [2022-11-19 08:13:01,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:01,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091080993] [2022-11-19 08:13:01,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:01,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:01,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:01,770 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:01,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (156)] Waiting until timeout for monitored process [2022-11-19 08:13:01,956 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:01,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:01,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:01,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:02,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:06,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:06,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091080993] [2022-11-19 08:13:06,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091080993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:06,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [340006245] [2022-11-19 08:13:06,277 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:06,277 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:06,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:06,278 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:06,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (157)] Waiting until timeout for monitored process [2022-11-19 08:13:06,614 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:06,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:06,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:06,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:06,943 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_166| (_ BitVec 32)) (v_ArrVal_2128 (_ BitVec 1)) (v_ArrVal_2126 (_ BitVec 1))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_166| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_166|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_166| v_ArrVal_2128) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2126) |v_ULTIMATE.start_main_~#id1~0#1.base_166| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:13:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:06,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:07,014 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:07,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [340006245] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:07,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919893013] [2022-11-19 08:13:07,015 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:07,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:07,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:07,016 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:07,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Waiting until timeout for monitored process [2022-11-19 08:13:07,225 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:07,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:07,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:07,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:07,443 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:07,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:07,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919893013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:07,498 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:07,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:13:07,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018491464] [2022-11-19 08:13:07,498 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:07,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:13:07,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:07,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:13:07,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:13:07,499 INFO L87 Difference]: Start difference. First operand 3250 states and 9867 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:07,523 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_166| (_ BitVec 32)) (v_ArrVal_2128 (_ BitVec 1)) (v_ArrVal_2126 (_ BitVec 1))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_166| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_166|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_166| v_ArrVal_2128) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2126) |v_ULTIMATE.start_main_~#id1~0#1.base_166| (_ bv0 1)) |c_#valid|))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_165| (_ BitVec 32)) (v_ArrVal_2111 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_165| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_165|) (_ bv0 1)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2111) |v_ULTIMATE.start_main_~#id1~0#1.base_165| (_ bv0 1))))))) is different from true [2022-11-19 08:13:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:07,547 INFO L93 Difference]: Finished difference Result 3252 states and 9869 transitions. [2022-11-19 08:13:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:07,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:13:07,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:07,556 INFO L225 Difference]: With dead ends: 3252 [2022-11-19 08:13:07,556 INFO L226 Difference]: Without dead ends: 3252 [2022-11-19 08:13:07,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:13:07,557 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:07,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 18 Unchecked, 0.0s Time] [2022-11-19 08:13:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2022-11-19 08:13:07,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3250. [2022-11-19 08:13:07,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 3248 states have (on average 3.0378694581280787) internal successors, (9867), 3249 states have internal predecessors, (9867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:07,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 9867 transitions. [2022-11-19 08:13:07,655 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 9867 transitions. Word has length 20 [2022-11-19 08:13:07,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:07,655 INFO L495 AbstractCegarLoop]: Abstraction has 3250 states and 9867 transitions. [2022-11-19 08:13:07,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 9867 transitions. [2022-11-19 08:13:07,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:13:07,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:07,660 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:07,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:07,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (157)] Ended with exit code 0 [2022-11-19 08:13:08,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (156)] Ended with exit code 0 [2022-11-19 08:13:08,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:08,267 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:08,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:08,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1190253265, now seen corresponding path program 6 times [2022-11-19 08:13:08,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:08,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610611886] [2022-11-19 08:13:08,268 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:13:08,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:08,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:08,269 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:08,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (159)] Waiting until timeout for monitored process [2022-11-19 08:13:08,462 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:13:08,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:08,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:13:08,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:08,673 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_168| (_ BitVec 32)) (v_ArrVal_2159 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_168| (_ bv1 1)))) (and (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2159) |v_ULTIMATE.start_main_~#id1~0#1.base_168| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_168|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)))))) is different from true [2022-11-19 08:13:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:13:08,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:08,780 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:08,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610611886] [2022-11-19 08:13:08,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610611886] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:08,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1548743682] [2022-11-19 08:13:08,780 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:13:08,780 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:08,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:08,781 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:08,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (160)] Waiting until timeout for monitored process [2022-11-19 08:13:09,134 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:13:09,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:09,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:09,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:09,345 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2175 (_ BitVec 1)) (v_ArrVal_2174 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_169| (_ BitVec 32))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_169| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_169|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_169| v_ArrVal_2175) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2174) |v_ULTIMATE.start_main_~#id1~0#1.base_169| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:13:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:13:09,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:09,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1548743682] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:09,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978576498] [2022-11-19 08:13:09,430 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:13:09,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:09,435 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:09,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Waiting until timeout for monitored process [2022-11-19 08:13:09,655 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:13:09,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:09,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:09,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:09,843 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2175 (_ BitVec 1)) (v_ArrVal_2174 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_170| (_ BitVec 32))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_170| v_ArrVal_2175) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2174) |v_ULTIMATE.start_main_~#id1~0#1.base_170| (_ bv0 1))) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_170| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_170|)))) is different from true [2022-11-19 08:13:09,874 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:13:09,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:09,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978576498] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:09,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:09,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:13:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036730519] [2022-11-19 08:13:09,921 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:09,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:13:09,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:13:09,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=21, Unknown=3, NotChecked=30, Total=72 [2022-11-19 08:13:09,921 INFO L87 Difference]: Start difference. First operand 3250 states and 9867 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:11,939 INFO L93 Difference]: Finished difference Result 3272 states and 9909 transitions. [2022-11-19 08:13:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:11,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:13:11,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:11,947 INFO L225 Difference]: With dead ends: 3272 [2022-11-19 08:13:11,947 INFO L226 Difference]: Without dead ends: 3272 [2022-11-19 08:13:11,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2022-11-19 08:13:11,948 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:11,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2022-11-19 08:13:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2022-11-19 08:13:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 3268. [2022-11-19 08:13:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 3266 states have (on average 3.0327617881200246) internal successors, (9905), 3267 states have internal predecessors, (9905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 9905 transitions. [2022-11-19 08:13:12,016 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 9905 transitions. Word has length 20 [2022-11-19 08:13:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:12,016 INFO L495 AbstractCegarLoop]: Abstraction has 3268 states and 9905 transitions. [2022-11-19 08:13:12,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 9905 transitions. [2022-11-19 08:13:12,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:13:12,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:12,021 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:12,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (160)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:12,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (159)] Ended with exit code 0 [2022-11-19 08:13:12,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (161)] Ended with exit code 0 [2022-11-19 08:13:12,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 160 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,159 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,161 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:12,625 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:12,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:12,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1913528077, now seen corresponding path program 7 times [2022-11-19 08:13:12,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:12,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954620559] [2022-11-19 08:13:12,626 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:13:12,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:12,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:12,627 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:12,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (162)] Waiting until timeout for monitored process [2022-11-19 08:13:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:12,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:12,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:13,036 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:13,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:13,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:13,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954620559] [2022-11-19 08:13:13,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954620559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:13,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:13,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:13,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024775751] [2022-11-19 08:13:13,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:13,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:13,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:13,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:13,037 INFO L87 Difference]: Start difference. First operand 3268 states and 9905 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:13,070 INFO L93 Difference]: Finished difference Result 3387 states and 10143 transitions. [2022-11-19 08:13:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:13:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:13,077 INFO L225 Difference]: With dead ends: 3387 [2022-11-19 08:13:13,077 INFO L226 Difference]: Without dead ends: 3218 [2022-11-19 08:13:13,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:13,077 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:13,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:13:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2022-11-19 08:13:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3218. [2022-11-19 08:13:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3216 states have (on average 3.048507462686567) internal successors, (9804), 3217 states have internal predecessors, (9804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 9804 transitions. [2022-11-19 08:13:13,144 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 9804 transitions. Word has length 20 [2022-11-19 08:13:13,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:13,144 INFO L495 AbstractCegarLoop]: Abstraction has 3218 states and 9804 transitions. [2022-11-19 08:13:13,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 9804 transitions. [2022-11-19 08:13:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:13,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:13,147 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:13,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (162)] Ended with exit code 0 [2022-11-19 08:13:13,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 162 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:13,347 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:13,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:13,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1062113692, now seen corresponding path program 1 times [2022-11-19 08:13:13,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:13,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684247348] [2022-11-19 08:13:13,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:13,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:13,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:13,349 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:13,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (163)] Waiting until timeout for monitored process [2022-11-19 08:13:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:13,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:13,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:13,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:13,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:13,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684247348] [2022-11-19 08:13:13,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684247348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:13,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:13,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:13,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493844287] [2022-11-19 08:13:13,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:13,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:13,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:13,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:13,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:13,754 INFO L87 Difference]: Start difference. First operand 3218 states and 9804 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:13,780 INFO L93 Difference]: Finished difference Result 3340 states and 10058 transitions. [2022-11-19 08:13:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:13,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:13,787 INFO L225 Difference]: With dead ends: 3340 [2022-11-19 08:13:13,787 INFO L226 Difference]: Without dead ends: 3340 [2022-11-19 08:13:13,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:13,787 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:13,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:13:13,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2022-11-19 08:13:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3229. [2022-11-19 08:13:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3227 states have (on average 3.041834521227146) internal successors, (9816), 3228 states have internal predecessors, (9816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 9816 transitions. [2022-11-19 08:13:13,872 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 9816 transitions. Word has length 21 [2022-11-19 08:13:13,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:13,873 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 9816 transitions. [2022-11-19 08:13:13,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:13,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 9816 transitions. [2022-11-19 08:13:13,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:13,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:13,876 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:13,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (163)] Ended with exit code 0 [2022-11-19 08:13:14,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:14,076 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:14,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1062119272, now seen corresponding path program 2 times [2022-11-19 08:13:14,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:14,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251901642] [2022-11-19 08:13:14,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:13:14,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:14,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:14,078 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:14,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (164)] Waiting until timeout for monitored process [2022-11-19 08:13:14,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:13:14,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:14,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:14,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:14,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:14,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:14,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251901642] [2022-11-19 08:13:14,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251901642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:14,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:14,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:14,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676587660] [2022-11-19 08:13:14,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:14,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:14,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:14,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:14,457 INFO L87 Difference]: Start difference. First operand 3229 states and 9816 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:14,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:14,478 INFO L93 Difference]: Finished difference Result 3359 states and 10088 transitions. [2022-11-19 08:13:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:14,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:14,484 INFO L225 Difference]: With dead ends: 3359 [2022-11-19 08:13:14,484 INFO L226 Difference]: Without dead ends: 3359 [2022-11-19 08:13:14,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:14,485 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:14,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-19 08:13:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-11-19 08:13:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3239. [2022-11-19 08:13:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3239 states, 3237 states have (on average 3.035835650293482) internal successors, (9827), 3238 states have internal predecessors, (9827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3239 states to 3239 states and 9827 transitions. [2022-11-19 08:13:14,530 INFO L78 Accepts]: Start accepts. Automaton has 3239 states and 9827 transitions. Word has length 21 [2022-11-19 08:13:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:14,530 INFO L495 AbstractCegarLoop]: Abstraction has 3239 states and 9827 transitions. [2022-11-19 08:13:14,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3239 states and 9827 transitions. [2022-11-19 08:13:14,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:14,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:14,535 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:14,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (164)] Ended with exit code 0 [2022-11-19 08:13:14,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 164 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:14,735 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:14,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:14,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1062257842, now seen corresponding path program 3 times [2022-11-19 08:13:14,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:14,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34607093] [2022-11-19 08:13:14,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:14,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:14,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:14,737 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:14,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (165)] Waiting until timeout for monitored process [2022-11-19 08:13:14,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:13:14,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:14,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:13:14,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:15,176 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_174| (_ BitVec 32)) (v_ArrVal_2255 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_174| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2255) |v_ULTIMATE.start_main_~#id1~0#1.base_174| (_ bv0 1))) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_174|)))))) is different from true [2022-11-19 08:13:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:15,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:15,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:15,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34607093] [2022-11-19 08:13:15,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34607093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:15,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1162105839] [2022-11-19 08:13:15,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:15,268 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:15,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:15,271 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:15,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (166)] Waiting until timeout for monitored process [2022-11-19 08:13:15,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:13:15,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:15,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:15,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:15,824 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_175| (_ BitVec 32)) (v_ArrVal_2272 (_ BitVec 1)) (v_ArrVal_2270 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_175|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_175| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_175| v_ArrVal_2270) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2272) |v_ULTIMATE.start_main_~#id1~0#1.base_175| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:13:15,847 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:15,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:15,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1162105839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:15,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122954316] [2022-11-19 08:13:15,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:15,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:15,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:15,903 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:15,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (167)] Waiting until timeout for monitored process [2022-11-19 08:13:16,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:13:16,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:16,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:16,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:18,362 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:18,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:18,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122954316] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:18,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:18,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:13:18,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181898817] [2022-11-19 08:13:18,412 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:18,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:13:18,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:18,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:13:18,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:13:18,412 INFO L87 Difference]: Start difference. First operand 3239 states and 9827 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:18,430 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_176| (_ BitVec 32)) (v_ArrVal_2288 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_176| (_ bv1 1)))) (and (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2288) |v_ULTIMATE.start_main_~#id1~0#1.base_176| (_ bv0 1)) |c_#valid|) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_176|))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_175| (_ BitVec 32)) (v_ArrVal_2272 (_ BitVec 1)) (v_ArrVal_2270 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_175|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_175| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_175| v_ArrVal_2270) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2272) |v_ULTIMATE.start_main_~#id1~0#1.base_175| (_ bv0 1)) |c_#valid|))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_174| (_ BitVec 32)) (v_ArrVal_2255 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_174| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2255) |v_ULTIMATE.start_main_~#id1~0#1.base_174| (_ bv0 1))) (= (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_174|)))))) is different from true [2022-11-19 08:13:18,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:18,451 INFO L93 Difference]: Finished difference Result 3361 states and 10081 transitions. [2022-11-19 08:13:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:18,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:18,458 INFO L225 Difference]: With dead ends: 3361 [2022-11-19 08:13:18,458 INFO L226 Difference]: Without dead ends: 3361 [2022-11-19 08:13:18,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:13:18,458 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:18,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 33 Unchecked, 0.0s Time] [2022-11-19 08:13:18,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2022-11-19 08:13:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3250. [2022-11-19 08:13:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3250 states, 3248 states have (on average 3.0360221674876846) internal successors, (9861), 3249 states have internal predecessors, (9861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3250 states to 3250 states and 9861 transitions. [2022-11-19 08:13:18,505 INFO L78 Accepts]: Start accepts. Automaton has 3250 states and 9861 transitions. Word has length 21 [2022-11-19 08:13:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:18,505 INFO L495 AbstractCegarLoop]: Abstraction has 3250 states and 9861 transitions. [2022-11-19 08:13:18,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3250 states and 9861 transitions. [2022-11-19 08:13:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:18,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:18,508 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:18,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (166)] Ended with exit code 0 [2022-11-19 08:13:18,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (165)] Ended with exit code 0 [2022-11-19 08:13:18,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (167)] Ended with exit code 0 [2022-11-19 08:13:19,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 166 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,165 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,167 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:19,109 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:19,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1062441052, now seen corresponding path program 4 times [2022-11-19 08:13:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:19,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780031416] [2022-11-19 08:13:19,110 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:19,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:19,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:19,111 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:19,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (168)] Waiting until timeout for monitored process [2022-11-19 08:13:19,299 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:19,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:19,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:19,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:19,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:23,594 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:23,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780031416] [2022-11-19 08:13:23,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780031416] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:23,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1617712599] [2022-11-19 08:13:23,595 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:23,595 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:23,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:23,596 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:23,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (169)] Waiting until timeout for monitored process [2022-11-19 08:13:23,982 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:23,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:23,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:23,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:25,108 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2320 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_178| (_ BitVec 32)) (v_ArrVal_2318 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_178| v_ArrVal_2318) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2320) |v_ULTIMATE.start_main_~#id1~0#1.base_178| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_178|) (_ bv0 1)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_178| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:13:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:25,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:25,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1617712599] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:25,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626712296] [2022-11-19 08:13:25,171 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:25,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:25,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:25,172 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:25,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (170)] Waiting until timeout for monitored process [2022-11-19 08:13:25,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:25,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:25,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:25,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:25,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:25,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626712296] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:25,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:25,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:13:25,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201699834] [2022-11-19 08:13:25,634 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:25,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:13:25,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:25,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:13:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:13:25,634 INFO L87 Difference]: Start difference. First operand 3250 states and 9861 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:25,651 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2320 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_178| (_ BitVec 32)) (v_ArrVal_2318 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_178| v_ArrVal_2318) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2320) |v_ULTIMATE.start_main_~#id1~0#1.base_178| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_178|) (_ bv0 1)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_178| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_177| (_ BitVec 32)) (v_ArrVal_2302 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_177| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_177|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2302) |v_ULTIMATE.start_main_~#id1~0#1.base_177| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:13:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:25,666 INFO L93 Difference]: Finished difference Result 3380 states and 10131 transitions. [2022-11-19 08:13:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:25,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:25,672 INFO L225 Difference]: With dead ends: 3380 [2022-11-19 08:13:25,672 INFO L226 Difference]: Without dead ends: 3380 [2022-11-19 08:13:25,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:13:25,672 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:25,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:13:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2022-11-19 08:13:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 3260. [2022-11-19 08:13:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 3258 states have (on average 3.03621853898097) internal successors, (9892), 3259 states have internal predecessors, (9892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 9892 transitions. [2022-11-19 08:13:25,733 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 9892 transitions. Word has length 21 [2022-11-19 08:13:25,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:25,733 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 9892 transitions. [2022-11-19 08:13:25,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 9892 transitions. [2022-11-19 08:13:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:25,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:25,738 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:25,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (168)] Ended with exit code 0 [2022-11-19 08:13:25,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (170)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:26,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (169)] Ended with exit code 0 [2022-11-19 08:13:26,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 168 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,170 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,169 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:26,339 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1055108002, now seen corresponding path program 5 times [2022-11-19 08:13:26,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:26,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837919184] [2022-11-19 08:13:26,340 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:26,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:26,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:26,341 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (171)] Waiting until timeout for monitored process [2022-11-19 08:13:26,541 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:26,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:26,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:26,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:26,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:30,834 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:30,834 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:30,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837919184] [2022-11-19 08:13:30,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837919184] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:30,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [439714362] [2022-11-19 08:13:30,834 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:30,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:30,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:30,835 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:30,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (172)] Waiting until timeout for monitored process [2022-11-19 08:13:31,211 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:31,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:31,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:31,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:31,525 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2368 (_ BitVec 1)) (v_ArrVal_2367 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_181| (_ BitVec 32))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_181| v_ArrVal_2368) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2367) |v_ULTIMATE.start_main_~#id1~0#1.base_181| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_181| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_181|)))) is different from true [2022-11-19 08:13:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:13:31,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:31,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [439714362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:31,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475445486] [2022-11-19 08:13:31,605 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:31,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:31,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:31,607 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:31,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (173)] Waiting until timeout for monitored process [2022-11-19 08:13:31,823 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:31,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:31,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:31,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:32,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:32,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475445486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:32,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:32,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:13:32,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825582324] [2022-11-19 08:13:32,086 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:32,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:13:32,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:13:32,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:13:32,087 INFO L87 Difference]: Start difference. First operand 3260 states and 9892 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:32,105 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2350 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_180| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_180| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2350) |v_ULTIMATE.start_main_~#id1~0#1.base_180| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_180|) (_ bv0 1))))) (exists ((v_ArrVal_2368 (_ BitVec 1)) (v_ArrVal_2367 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_181| (_ BitVec 32))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_181| v_ArrVal_2368) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2367) |v_ULTIMATE.start_main_~#id1~0#1.base_181| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_181| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_181|))))) is different from true [2022-11-19 08:13:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:32,128 INFO L93 Difference]: Finished difference Result 3283 states and 9917 transitions. [2022-11-19 08:13:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:32,134 INFO L225 Difference]: With dead ends: 3283 [2022-11-19 08:13:32,134 INFO L226 Difference]: Without dead ends: 3283 [2022-11-19 08:13:32,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:13:32,135 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:32,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 28 Unchecked, 0.0s Time] [2022-11-19 08:13:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2022-11-19 08:13:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 3249. [2022-11-19 08:13:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3247 states have (on average 3.036033261472128) internal successors, (9858), 3248 states have internal predecessors, (9858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 9858 transitions. [2022-11-19 08:13:32,207 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 9858 transitions. Word has length 21 [2022-11-19 08:13:32,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:32,207 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 9858 transitions. [2022-11-19 08:13:32,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 9858 transitions. [2022-11-19 08:13:32,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:32,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:32,211 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:32,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (171)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:32,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (173)] Ended with exit code 0 [2022-11-19 08:13:32,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (172)] Ended with exit code 0 [2022-11-19 08:13:32,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 171 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,173 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,172 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:32,825 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:32,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1060422952, now seen corresponding path program 6 times [2022-11-19 08:13:32,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:32,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662780187] [2022-11-19 08:13:32,825 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:13:32,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:32,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:32,826 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:32,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (174)] Waiting until timeout for monitored process [2022-11-19 08:13:33,027 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:13:33,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:33,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:13:33,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:33,253 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_183| (_ BitVec 32)) (v_ArrVal_2399 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_183| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_183|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2399) |v_ULTIMATE.start_main_~#id1~0#1.base_183| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:13:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:13:33,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:33,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:33,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662780187] [2022-11-19 08:13:33,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662780187] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:33,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1395426233] [2022-11-19 08:13:33,345 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:13:33,345 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:33,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:33,346 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:33,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (175)] Waiting until timeout for monitored process [2022-11-19 08:13:33,730 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:13:33,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:33,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:33,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:33,952 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2416 (_ BitVec 1)) (v_ArrVal_2415 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_184|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_184| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_184| v_ArrVal_2416) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2415) |v_ULTIMATE.start_main_~#id1~0#1.base_184| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:13:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:13:33,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:34,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1395426233] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:34,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997607282] [2022-11-19 08:13:34,028 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:13:34,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:34,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:34,029 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:34,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (176)] Waiting until timeout for monitored process [2022-11-19 08:13:34,268 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:13:34,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:34,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:34,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:36,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:13:36,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997607282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:36,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:36,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:13:36,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580198721] [2022-11-19 08:13:36,565 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:36,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:13:36,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:13:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:13:36,566 INFO L87 Difference]: Start difference. First operand 3249 states and 9858 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:36,584 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_185| (_ BitVec 32)) (v_ArrVal_2431 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_185| (_ bv1 1)))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_185|) (_ bv0 1)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2431) |v_ULTIMATE.start_main_~#id1~0#1.base_185| (_ bv0 1)))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_184| (_ BitVec 32)) (v_ArrVal_2416 (_ BitVec 1)) (v_ArrVal_2415 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_184|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_184| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_184| v_ArrVal_2416) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2415) |v_ULTIMATE.start_main_~#id1~0#1.base_184| (_ bv0 1)) |c_#valid|))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_183| (_ BitVec 32)) (v_ArrVal_2399 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_183| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_183|)) (= (_ bv0 1) (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2399) |v_ULTIMATE.start_main_~#id1~0#1.base_183| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:13:36,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:36,599 INFO L93 Difference]: Finished difference Result 3379 states and 10119 transitions. [2022-11-19 08:13:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:36,600 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:36,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:36,606 INFO L225 Difference]: With dead ends: 3379 [2022-11-19 08:13:36,606 INFO L226 Difference]: Without dead ends: 3379 [2022-11-19 08:13:36,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:13:36,606 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:36,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:13:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2022-11-19 08:13:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3347. [2022-11-19 08:13:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 3345 states have (on average 3.0086696562032884) internal successors, (10064), 3346 states have internal predecessors, (10064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 10064 transitions. [2022-11-19 08:13:36,669 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 10064 transitions. Word has length 21 [2022-11-19 08:13:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:36,670 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 10064 transitions. [2022-11-19 08:13:36,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 10064 transitions. [2022-11-19 08:13:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:36,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:36,673 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:36,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (176)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:36,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (175)] Ended with exit code 0 [2022-11-19 08:13:37,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (174)] Ended with exit code 0 [2022-11-19 08:13:37,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 176 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,175 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,174 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:37,273 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:37,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:37,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1508664541, now seen corresponding path program 15 times [2022-11-19 08:13:37,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:37,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173686803] [2022-11-19 08:13:37,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:37,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:37,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:37,275 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:37,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (177)] Waiting until timeout for monitored process [2022-11-19 08:13:37,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-19 08:13:37,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:37,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:13:37,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:37,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:38,754 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:38,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173686803] [2022-11-19 08:13:38,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173686803] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:38,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1987881690] [2022-11-19 08:13:38,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:38,754 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:38,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:38,755 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:38,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (178)] Waiting until timeout for monitored process [2022-11-19 08:13:39,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-19 08:13:39,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:39,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:13:39,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:39,239 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:39,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:39,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1987881690] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:39,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412173055] [2022-11-19 08:13:39,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:39,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:39,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:39,389 INFO L229 MonitoredProcess]: Starting monitored process 179 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:39,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (179)] Waiting until timeout for monitored process [2022-11-19 08:13:39,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-19 08:13:39,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:39,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:13:39,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:39,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:39,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412173055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:39,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:39,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 15, 15] total 30 [2022-11-19 08:13:39,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22344458] [2022-11-19 08:13:39,859 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:39,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 08:13:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:39,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 08:13:39,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:13:39,860 INFO L87 Difference]: Start difference. First operand 3347 states and 10064 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:42,625 INFO L93 Difference]: Finished difference Result 7755 states and 20058 transitions. [2022-11-19 08:13:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-19 08:13:42,626 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:42,637 INFO L225 Difference]: With dead ends: 7755 [2022-11-19 08:13:42,637 INFO L226 Difference]: Without dead ends: 7755 [2022-11-19 08:13:42,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=590, Invalid=2272, Unknown=0, NotChecked=0, Total=2862 [2022-11-19 08:13:42,638 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 614 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:42,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 0 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:13:42,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7755 states. [2022-11-19 08:13:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7755 to 3638. [2022-11-19 08:13:42,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3636 states have (on average 3.024202420242024) internal successors, (10996), 3637 states have internal predecessors, (10996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 10996 transitions. [2022-11-19 08:13:42,711 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 10996 transitions. Word has length 21 [2022-11-19 08:13:42,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:42,712 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 10996 transitions. [2022-11-19 08:13:42,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:42,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 10996 transitions. [2022-11-19 08:13:42,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:42,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:42,715 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:42,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (178)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:42,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (177)] Ended with exit code 0 [2022-11-19 08:13:43,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (179)] Ended with exit code 0 [2022-11-19 08:13:43,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 178 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,177 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,179 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:43,316 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1396270969, now seen corresponding path program 1 times [2022-11-19 08:13:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:43,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169285006] [2022-11-19 08:13:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:43,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:43,318 INFO L229 MonitoredProcess]: Starting monitored process 180 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:43,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (180)] Waiting until timeout for monitored process [2022-11-19 08:13:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:43,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:43,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:43,765 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:43,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:47,854 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:47,854 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:47,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169285006] [2022-11-19 08:13:47,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169285006] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:47,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [203729609] [2022-11-19 08:13:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:47,854 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:47,855 INFO L229 MonitoredProcess]: Starting monitored process 181 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:47,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (181)] Waiting until timeout for monitored process [2022-11-19 08:13:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:48,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:48,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:50,398 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_187| (_ BitVec 32)) (v_ArrVal_2489 (_ BitVec 1)) (v_ArrVal_2490 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_187| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_187|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_187| v_ArrVal_2490) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2489) |v_ULTIMATE.start_main_~#id1~0#1.base_187| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:13:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:50,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:50,560 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:50,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [203729609] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:50,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626455812] [2022-11-19 08:13:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:50,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:50,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:50,561 INFO L229 MonitoredProcess]: Starting monitored process 182 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:50,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (182)] Waiting until timeout for monitored process [2022-11-19 08:13:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:50,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:50,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:50,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:51,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626455812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:51,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:51,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:13:51,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259466558] [2022-11-19 08:13:51,019 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:51,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:13:51,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:51,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:13:51,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:13:51,020 INFO L87 Difference]: Start difference. First operand 3638 states and 10996 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:51,036 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_187| (_ BitVec 32)) (v_ArrVal_2489 (_ BitVec 1)) (v_ArrVal_2490 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_187| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_187|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_187| v_ArrVal_2490) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2489) |v_ULTIMATE.start_main_~#id1~0#1.base_187| (_ bv0 1)) |c_#valid|))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_186| (_ BitVec 32)) (v_ArrVal_2474 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_186| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_186|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2474) |v_ULTIMATE.start_main_~#id1~0#1.base_186| (_ bv0 1))))))) is different from true [2022-11-19 08:13:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:51,052 INFO L93 Difference]: Finished difference Result 3959 states and 11679 transitions. [2022-11-19 08:13:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:51,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:51,059 INFO L225 Difference]: With dead ends: 3959 [2022-11-19 08:13:51,059 INFO L226 Difference]: Without dead ends: 3959 [2022-11-19 08:13:51,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:13:51,059 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:51,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:13:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2022-11-19 08:13:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3738. [2022-11-19 08:13:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3738 states, 3736 states have (on average 3.0021413276231264) internal successors, (11216), 3737 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:51,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 11216 transitions. [2022-11-19 08:13:51,154 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 11216 transitions. Word has length 21 [2022-11-19 08:13:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:51,154 INFO L495 AbstractCegarLoop]: Abstraction has 3738 states and 11216 transitions. [2022-11-19 08:13:51,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:51,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 11216 transitions. [2022-11-19 08:13:51,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:51,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:51,159 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:51,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (181)] Forceful destruction successful, exit code 0 [2022-11-19 08:13:51,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (182)] Ended with exit code 0 [2022-11-19 08:13:51,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (180)] Ended with exit code 0 [2022-11-19 08:13:51,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 181 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,182 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,180 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:51,764 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:51,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash -621786001, now seen corresponding path program 2 times [2022-11-19 08:13:51,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:51,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043923037] [2022-11-19 08:13:51,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:13:51,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:51,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:51,766 INFO L229 MonitoredProcess]: Starting monitored process 183 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:51,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (183)] Waiting until timeout for monitored process [2022-11-19 08:13:51,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-19 08:13:51,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:51,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:51,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:52,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:52,155 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:52,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043923037] [2022-11-19 08:13:52,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043923037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:52,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:52,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:52,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005153358] [2022-11-19 08:13:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:52,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:52,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:52,156 INFO L87 Difference]: Start difference. First operand 3738 states and 11216 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:52,179 INFO L93 Difference]: Finished difference Result 3759 states and 11249 transitions. [2022-11-19 08:13:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:52,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:52,186 INFO L225 Difference]: With dead ends: 3759 [2022-11-19 08:13:52,186 INFO L226 Difference]: Without dead ends: 3759 [2022-11-19 08:13:52,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:52,186 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:52,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-11-19 08:13:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2022-11-19 08:13:52,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3738. [2022-11-19 08:13:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3738 states, 3736 states have (on average 3.0021413276231264) internal successors, (11216), 3737 states have internal predecessors, (11216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 11216 transitions. [2022-11-19 08:13:52,266 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 11216 transitions. Word has length 21 [2022-11-19 08:13:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:52,266 INFO L495 AbstractCegarLoop]: Abstraction has 3738 states and 11216 transitions. [2022-11-19 08:13:52,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 11216 transitions. [2022-11-19 08:13:52,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:52,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:52,271 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:52,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (183)] Ended with exit code 0 [2022-11-19 08:13:52,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 183 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:52,472 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:52,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:52,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1887041221, now seen corresponding path program 3 times [2022-11-19 08:13:52,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:52,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659437284] [2022-11-19 08:13:52,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:52,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:52,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:52,473 INFO L229 MonitoredProcess]: Starting monitored process 184 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:52,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (184)] Waiting until timeout for monitored process [2022-11-19 08:13:52,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:13:52,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:52,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:13:52,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:52,813 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_190| (_ BitVec 32)) (v_ArrVal_2537 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_190| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_190|) (_ bv0 1)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2537) |v_ULTIMATE.start_main_~#id1~0#1.base_190| (_ bv0 1)))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:13:52,961 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:52,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:53,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:53,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659437284] [2022-11-19 08:13:53,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659437284] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:53,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [107464751] [2022-11-19 08:13:53,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:53,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:53,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:53,033 INFO L229 MonitoredProcess]: Starting monitored process 185 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:53,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (185)] Waiting until timeout for monitored process [2022-11-19 08:13:53,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:13:53,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:53,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:53,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:53,521 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2553 (_ BitVec 1)) (v_ArrVal_2555 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_191| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_191|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_191| v_ArrVal_2553) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2555) |v_ULTIMATE.start_main_~#id1~0#1.base_191| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_191| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:13:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:53,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:53,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [107464751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:53,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367698160] [2022-11-19 08:13:53,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:13:53,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:53,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:53,726 INFO L229 MonitoredProcess]: Starting monitored process 186 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:53,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (186)] Waiting until timeout for monitored process [2022-11-19 08:13:53,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:13:53,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:53,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:13:53,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:54,048 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2553 (_ BitVec 1)) (v_ArrVal_2555 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_192| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_192|)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_192| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_192| v_ArrVal_2553) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2555) |v_ULTIMATE.start_main_~#id1~0#1.base_192| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-19 08:13:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:13:54,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:13:54,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367698160] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:54,209 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:54,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:13:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331479883] [2022-11-19 08:13:54,209 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:54,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:13:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:13:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=21, Unknown=3, NotChecked=30, Total=72 [2022-11-19 08:13:54,210 INFO L87 Difference]: Start difference. First operand 3738 states and 11216 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:54,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:54,311 INFO L93 Difference]: Finished difference Result 4071 states and 11892 transitions. [2022-11-19 08:13:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:13:54,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:54,318 INFO L225 Difference]: With dead ends: 4071 [2022-11-19 08:13:54,319 INFO L226 Difference]: Without dead ends: 3688 [2022-11-19 08:13:54,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2022-11-19 08:13:54,319 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:54,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 35 Unchecked, 0.0s Time] [2022-11-19 08:13:54,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2022-11-19 08:13:54,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3688. [2022-11-19 08:13:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3686 states have (on average 3.011665762344004) internal successors, (11101), 3687 states have internal predecessors, (11101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 11101 transitions. [2022-11-19 08:13:54,401 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 11101 transitions. Word has length 21 [2022-11-19 08:13:54,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:54,401 INFO L495 AbstractCegarLoop]: Abstraction has 3688 states and 11101 transitions. [2022-11-19 08:13:54,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:54,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 11101 transitions. [2022-11-19 08:13:54,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:54,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:54,408 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:54,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (184)] Ended with exit code 0 [2022-11-19 08:13:54,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (186)] Ended with exit code 0 [2022-11-19 08:13:54,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (185)] Ended with exit code 0 [2022-11-19 08:13:55,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 184 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,186 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,185 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:55,009 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash 388979771, now seen corresponding path program 4 times [2022-11-19 08:13:55,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:55,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938467685] [2022-11-19 08:13:55,010 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:55,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:55,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:55,011 INFO L229 MonitoredProcess]: Starting monitored process 187 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:55,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (187)] Waiting until timeout for monitored process [2022-11-19 08:13:55,220 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:55,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:55,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:55,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:55,449 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:55,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:55,449 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:55,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938467685] [2022-11-19 08:13:55,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938467685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:55,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:55,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:55,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030673678] [2022-11-19 08:13:55,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:55,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:55,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:55,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:55,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:55,451 INFO L87 Difference]: Start difference. First operand 3688 states and 11101 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:55,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:55,481 INFO L93 Difference]: Finished difference Result 3699 states and 11113 transitions. [2022-11-19 08:13:55,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:55,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:55,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:55,489 INFO L225 Difference]: With dead ends: 3699 [2022-11-19 08:13:55,489 INFO L226 Difference]: Without dead ends: 3699 [2022-11-19 08:13:55,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:55,489 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:55,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:13:55,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2022-11-19 08:13:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3689. [2022-11-19 08:13:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 3687 states have (on average 3.0111201518850015) internal successors, (11102), 3688 states have internal predecessors, (11102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 11102 transitions. [2022-11-19 08:13:55,543 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 11102 transitions. Word has length 21 [2022-11-19 08:13:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:55,544 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 11102 transitions. [2022-11-19 08:13:55,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 11102 transitions. [2022-11-19 08:13:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:55,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:55,547 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:55,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (187)] Ended with exit code 0 [2022-11-19 08:13:55,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 187 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:55,747 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:55,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:55,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2144370543, now seen corresponding path program 5 times [2022-11-19 08:13:55,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:55,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082260121] [2022-11-19 08:13:55,748 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:13:55,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:55,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:55,749 INFO L229 MonitoredProcess]: Starting monitored process 188 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:55,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (188)] Waiting until timeout for monitored process [2022-11-19 08:13:55,960 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:13:55,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:55,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:13:55,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:13:56,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:13:56,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:56,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082260121] [2022-11-19 08:13:56,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082260121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:56,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:13:56,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:13:56,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590179225] [2022-11-19 08:13:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:56,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:13:56,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:13:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:56,193 INFO L87 Difference]: Start difference. First operand 3689 states and 11102 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:56,223 INFO L93 Difference]: Finished difference Result 3697 states and 11110 transitions. [2022-11-19 08:13:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:13:56,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:13:56,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:56,230 INFO L225 Difference]: With dead ends: 3697 [2022-11-19 08:13:56,230 INFO L226 Difference]: Without dead ends: 3697 [2022-11-19 08:13:56,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:13:56,231 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:56,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2022-11-19 08:13:56,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2022-11-19 08:13:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3686. [2022-11-19 08:13:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3684 states have (on average 3.012486427795874) internal successors, (11098), 3685 states have internal predecessors, (11098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 11098 transitions. [2022-11-19 08:13:56,283 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 11098 transitions. Word has length 21 [2022-11-19 08:13:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:56,283 INFO L495 AbstractCegarLoop]: Abstraction has 3686 states and 11098 transitions. [2022-11-19 08:13:56,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 11098 transitions. [2022-11-19 08:13:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:13:56,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:56,286 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:56,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (188)] Ended with exit code 0 [2022-11-19 08:13:56,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 188 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:56,487 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:13:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash 912507777, now seen corresponding path program 16 times [2022-11-19 08:13:56,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:13:56,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606127031] [2022-11-19 08:13:56,487 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:56,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:13:56,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:13:56,488 INFO L229 MonitoredProcess]: Starting monitored process 189 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:13:56,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (189)] Waiting until timeout for monitored process [2022-11-19 08:13:56,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:56,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:56,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:13:56,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:56,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:57,983 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:13:57,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606127031] [2022-11-19 08:13:57,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606127031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:57,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1804654409] [2022-11-19 08:13:57,984 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:57,984 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:13:57,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:13:57,987 INFO L229 MonitoredProcess]: Starting monitored process 190 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:13:58,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (190)] Waiting until timeout for monitored process [2022-11-19 08:13:58,374 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:58,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:58,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:13:58,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:58,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:58,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1804654409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:58,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107350771] [2022-11-19 08:13:58,594 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:13:58,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:58,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:58,595 INFO L229 MonitoredProcess]: Starting monitored process 191 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:58,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (191)] Waiting until timeout for monitored process [2022-11-19 08:13:58,809 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:13:58,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:13:58,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:13:58,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:58,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:13:59,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107350771] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:59,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:13:59,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 15, 15] total 30 [2022-11-19 08:13:59,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978125337] [2022-11-19 08:13:59,024 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:13:59,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 08:13:59,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:13:59,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 08:13:59,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:13:59,025 INFO L87 Difference]: Start difference. First operand 3686 states and 11098 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:08,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:08,328 INFO L93 Difference]: Finished difference Result 15942 states and 40575 transitions. [2022-11-19 08:14:08,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-19 08:14:08,329 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:08,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:08,356 INFO L225 Difference]: With dead ends: 15942 [2022-11-19 08:14:08,356 INFO L226 Difference]: Without dead ends: 15942 [2022-11-19 08:14:08,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1722 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1477, Invalid=6005, Unknown=0, NotChecked=0, Total=7482 [2022-11-19 08:14:08,358 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 684 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:08,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 0 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:14:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15942 states. [2022-11-19 08:14:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15942 to 4227. [2022-11-19 08:14:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 4225 states have (on average 3.0549112426035503) internal successors, (12907), 4226 states have internal predecessors, (12907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 12907 transitions. [2022-11-19 08:14:08,495 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 12907 transitions. Word has length 21 [2022-11-19 08:14:08,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:08,495 INFO L495 AbstractCegarLoop]: Abstraction has 4227 states and 12907 transitions. [2022-11-19 08:14:08,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 12907 transitions. [2022-11-19 08:14:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:14:08,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:08,500 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:08,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (190)] Ended with exit code 0 [2022-11-19 08:14:08,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (189)] Ended with exit code 0 [2022-11-19 08:14:08,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (191)] Ended with exit code 0 [2022-11-19 08:14:09,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 190 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,189 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,191 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:09,101 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:14:09,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:09,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1868491141, now seen corresponding path program 17 times [2022-11-19 08:14:09,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:09,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378253113] [2022-11-19 08:14:09,101 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:14:09,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:09,103 INFO L229 MonitoredProcess]: Starting monitored process 192 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:09,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (192)] Waiting until timeout for monitored process [2022-11-19 08:14:09,297 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-19 08:14:09,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:09,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:09,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:09,626 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:09,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:10,669 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:10,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378253113] [2022-11-19 08:14:10,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378253113] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:10,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [999803379] [2022-11-19 08:14:10,670 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:14:10,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:14:10,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:14:10,671 INFO L229 MonitoredProcess]: Starting monitored process 193 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:14:10,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (193)] Waiting until timeout for monitored process [2022-11-19 08:14:11,080 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-19 08:14:11,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:11,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:11,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:11,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:11,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [999803379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53900189] [2022-11-19 08:14:11,298 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:14:11,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:11,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:11,299 INFO L229 MonitoredProcess]: Starting monitored process 194 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:11,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (194)] Waiting until timeout for monitored process [2022-11-19 08:14:11,529 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-19 08:14:11,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:11,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:11,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:11,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:11,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53900189] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:11,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:14:11,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 15, 15] total 30 [2022-11-19 08:14:11,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697124197] [2022-11-19 08:14:11,773 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:14:11,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 08:14:11,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:11,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 08:14:11,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=850, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:14:11,774 INFO L87 Difference]: Start difference. First operand 4227 states and 12907 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:22,433 INFO L93 Difference]: Finished difference Result 18161 states and 47888 transitions. [2022-11-19 08:14:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-19 08:14:22,434 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:22,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:22,466 INFO L225 Difference]: With dead ends: 18161 [2022-11-19 08:14:22,467 INFO L226 Difference]: Without dead ends: 18161 [2022-11-19 08:14:22,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2282 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1751, Invalid=6991, Unknown=0, NotChecked=0, Total=8742 [2022-11-19 08:14:22,468 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:22,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 0 Invalid, 2084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 08:14:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18161 states. [2022-11-19 08:14:22,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18161 to 4408. [2022-11-19 08:14:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4408 states, 4406 states have (on average 3.0821606899682252) internal successors, (13580), 4407 states have internal predecessors, (13580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 13580 transitions. [2022-11-19 08:14:22,627 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 13580 transitions. Word has length 21 [2022-11-19 08:14:22,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:22,628 INFO L495 AbstractCegarLoop]: Abstraction has 4408 states and 13580 transitions. [2022-11-19 08:14:22,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:22,628 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 13580 transitions. [2022-11-19 08:14:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:14:22,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:22,631 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:22,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (193)] Ended with exit code 0 [2022-11-19 08:14:22,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (192)] Ended with exit code 0 [2022-11-19 08:14:23,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (194)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:23,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 193 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,192 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,194 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:23,232 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:14:23,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:23,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1671071885, now seen corresponding path program 18 times [2022-11-19 08:14:23,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:23,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371323565] [2022-11-19 08:14:23,233 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:14:23,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:23,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:23,234 INFO L229 MonitoredProcess]: Starting monitored process 195 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:23,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (195)] Waiting until timeout for monitored process [2022-11-19 08:14:23,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-11-19 08:14:23,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:23,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:23,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:23,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:24,831 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:24,831 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:24,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371323565] [2022-11-19 08:14:24,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371323565] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:24,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1845653373] [2022-11-19 08:14:24,831 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:14:24,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:14:24,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:14:24,832 INFO L229 MonitoredProcess]: Starting monitored process 196 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:14:24,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (196)] Waiting until timeout for monitored process [2022-11-19 08:14:25,263 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-11-19 08:14:25,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:25,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:25,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:25,345 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:25,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:25,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1845653373] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:25,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075383899] [2022-11-19 08:14:25,502 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:14:25,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:25,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:25,503 INFO L229 MonitoredProcess]: Starting monitored process 197 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:25,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (197)] Waiting until timeout for monitored process [2022-11-19 08:14:25,766 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-11-19 08:14:25,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:25,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:25,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:25,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:25,982 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:25,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075383899] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:25,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:14:25,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 15, 15] total 30 [2022-11-19 08:14:25,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267312694] [2022-11-19 08:14:25,983 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:14:25,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 08:14:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:25,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 08:14:25,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=854, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:14:25,984 INFO L87 Difference]: Start difference. First operand 4408 states and 13580 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:40,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:40,061 INFO L93 Difference]: Finished difference Result 15092 states and 40586 transitions. [2022-11-19 08:14:40,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-11-19 08:14:40,062 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:40,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:40,089 INFO L225 Difference]: With dead ends: 15092 [2022-11-19 08:14:40,089 INFO L226 Difference]: Without dead ends: 15092 [2022-11-19 08:14:40,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2793 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=2109, Invalid=8193, Unknown=0, NotChecked=0, Total=10302 [2022-11-19 08:14:40,090 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1444 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:40,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 0 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:14:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15092 states. [2022-11-19 08:14:40,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15092 to 3502. [2022-11-19 08:14:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 3500 states have (on average 3.048857142857143) internal successors, (10671), 3501 states have internal predecessors, (10671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 10671 transitions. [2022-11-19 08:14:40,222 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 10671 transitions. Word has length 21 [2022-11-19 08:14:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:40,222 INFO L495 AbstractCegarLoop]: Abstraction has 3502 states and 10671 transitions. [2022-11-19 08:14:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 10671 transitions. [2022-11-19 08:14:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:14:40,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:40,225 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:40,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (195)] Ended with exit code 0 [2022-11-19 08:14:40,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (196)] Ended with exit code 0 [2022-11-19 08:14:40,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (197)] Ended with exit code 0 [2022-11-19 08:14:40,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 195 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,196 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,197 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:40,826 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:14:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:40,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1583154841, now seen corresponding path program 19 times [2022-11-19 08:14:40,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:40,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742095407] [2022-11-19 08:14:40,827 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:14:40,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:40,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:40,828 INFO L229 MonitoredProcess]: Starting monitored process 198 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:40,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (198)] Waiting until timeout for monitored process [2022-11-19 08:14:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:41,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:41,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:41,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:42,496 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:42,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742095407] [2022-11-19 08:14:42,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742095407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:42,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [451364416] [2022-11-19 08:14:42,497 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:14:42,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:14:42,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:14:42,498 INFO L229 MonitoredProcess]: Starting monitored process 199 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:14:42,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (199)] Waiting until timeout for monitored process [2022-11-19 08:14:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:42,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:42,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:42,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:43,105 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:43,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [451364416] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:43,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630257428] [2022-11-19 08:14:43,106 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:14:43,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:43,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:43,107 INFO L229 MonitoredProcess]: Starting monitored process 200 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:43,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (200)] Waiting until timeout for monitored process [2022-11-19 08:14:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:43,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 08:14:43,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:43,382 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:43,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:14:43,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630257428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:43,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:14:43,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15, 15, 15, 15] total 30 [2022-11-19 08:14:43,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102975561] [2022-11-19 08:14:43,534 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:14:43,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 08:14:43,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 08:14:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=834, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:14:43,535 INFO L87 Difference]: Start difference. First operand 3502 states and 10671 transitions. Second operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:49,719 INFO L93 Difference]: Finished difference Result 8731 states and 22058 transitions. [2022-11-19 08:14:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-19 08:14:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:49,734 INFO L225 Difference]: With dead ends: 8731 [2022-11-19 08:14:49,735 INFO L226 Difference]: Without dead ends: 8731 [2022-11-19 08:14:49,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1242, Invalid=4458, Unknown=0, NotChecked=0, Total=5700 [2022-11-19 08:14:49,735 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1133 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:49,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 0 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 08:14:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2022-11-19 08:14:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 2769. [2022-11-19 08:14:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2767 states have (on average 2.9515720997470183) internal successors, (8167), 2768 states have internal predecessors, (8167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 8167 transitions. [2022-11-19 08:14:49,847 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 8167 transitions. Word has length 21 [2022-11-19 08:14:49,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:49,847 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 8167 transitions. [2022-11-19 08:14:49,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 8167 transitions. [2022-11-19 08:14:49,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:14:49,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:49,850 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:49,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (200)] Ended with exit code 0 [2022-11-19 08:14:50,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (199)] Ended with exit code 0 [2022-11-19 08:14:50,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (198)] Ended with exit code 0 [2022-11-19 08:14:50,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 200 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,199 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,198 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:50,451 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:14:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:50,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1974031530, now seen corresponding path program 7 times [2022-11-19 08:14:50,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:50,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989050842] [2022-11-19 08:14:50,452 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:14:50,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:50,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:50,453 INFO L229 MonitoredProcess]: Starting monitored process 201 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:50,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (201)] Waiting until timeout for monitored process [2022-11-19 08:14:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:50,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:14:50,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:14:50,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:14:50,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:50,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989050842] [2022-11-19 08:14:50,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989050842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:50,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:50,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:14:50,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295420199] [2022-11-19 08:14:50,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:50,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:14:50,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:50,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:14:50,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:14:50,869 INFO L87 Difference]: Start difference. First operand 2769 states and 8167 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:50,895 INFO L93 Difference]: Finished difference Result 2871 states and 8379 transitions. [2022-11-19 08:14:50,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:14:50,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:50,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:50,905 INFO L225 Difference]: With dead ends: 2871 [2022-11-19 08:14:50,905 INFO L226 Difference]: Without dead ends: 2871 [2022-11-19 08:14:50,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:14:50,906 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:50,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:14:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2022-11-19 08:14:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2770. [2022-11-19 08:14:50,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2768 states have (on average 2.9508670520231215) internal successors, (8168), 2769 states have internal predecessors, (8168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 8168 transitions. [2022-11-19 08:14:50,950 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 8168 transitions. Word has length 21 [2022-11-19 08:14:50,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:50,950 INFO L495 AbstractCegarLoop]: Abstraction has 2770 states and 8168 transitions. [2022-11-19 08:14:50,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:50,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 8168 transitions. [2022-11-19 08:14:50,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:14:50,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:50,954 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:50,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (201)] Ended with exit code 0 [2022-11-19 08:14:51,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 201 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:51,167 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:14:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:51,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1978500180, now seen corresponding path program 8 times [2022-11-19 08:14:51,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:51,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826147897] [2022-11-19 08:14:51,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:14:51,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:51,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:51,168 INFO L229 MonitoredProcess]: Starting monitored process 202 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:51,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (202)] Waiting until timeout for monitored process [2022-11-19 08:14:51,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:14:51,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:51,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:14:51,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:51,665 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_196| (_ BitVec 32)) (v_ArrVal_2742 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_196| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_196|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2742) |v_ULTIMATE.start_main_~#id1~0#1.base_196| (_ bv0 1)) |c_#valid|)))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:14:51,707 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:14:51,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:14:51,782 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:51,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826147897] [2022-11-19 08:14:51,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826147897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:51,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [118790547] [2022-11-19 08:14:51,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:14:51,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:14:51,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:14:51,784 INFO L229 MonitoredProcess]: Starting monitored process 203 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:14:51,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (203)] Waiting until timeout for monitored process [2022-11-19 08:14:52,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:14:52,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:52,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:14:52,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:52,387 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_197| (_ BitVec 32)) (v_ArrVal_2758 (_ BitVec 1)) (v_ArrVal_2757 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_197| v_ArrVal_2758) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2757) |v_ULTIMATE.start_main_~#id1~0#1.base_197| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_197| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_197|)))) is different from true [2022-11-19 08:14:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 10 not checked. [2022-11-19 08:14:52,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:14:52,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [118790547] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:52,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769612728] [2022-11-19 08:14:52,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:14:52,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:52,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:52,472 INFO L229 MonitoredProcess]: Starting monitored process 204 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:52,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (204)] Waiting until timeout for monitored process [2022-11-19 08:14:52,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:14:52,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:52,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:14:52,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:14:54,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:14:55,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769612728] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:55,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:14:55,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:14:55,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776573297] [2022-11-19 08:14:55,005 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:14:55,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:14:55,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:14:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:14:55,006 INFO L87 Difference]: Start difference. First operand 2770 states and 8168 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:55,026 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_196| (_ BitVec 32)) (v_ArrVal_2742 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_196| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_196|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2742) |v_ULTIMATE.start_main_~#id1~0#1.base_196| (_ bv0 1)) |c_#valid|)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_198| (_ BitVec 32)) (v_ArrVal_2775 (_ BitVec 1))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_198| (_ bv1 1)))) (and (= (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_198|)) (= |c_#valid| (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2775) |v_ULTIMATE.start_main_~#id1~0#1.base_198| (_ bv0 1)))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_197| (_ BitVec 32)) (v_ArrVal_2758 (_ BitVec 1)) (v_ArrVal_2757 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_197| v_ArrVal_2758) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2757) |v_ULTIMATE.start_main_~#id1~0#1.base_197| (_ bv0 1)) |c_#valid|) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_197| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_197|))))) is different from true [2022-11-19 08:14:55,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:55,043 INFO L93 Difference]: Finished difference Result 2872 states and 8380 transitions. [2022-11-19 08:14:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:14:55,043 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:55,048 INFO L225 Difference]: With dead ends: 2872 [2022-11-19 08:14:55,048 INFO L226 Difference]: Without dead ends: 2872 [2022-11-19 08:14:55,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:14:55,048 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:55,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 35 Unchecked, 0.0s Time] [2022-11-19 08:14:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2022-11-19 08:14:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2779. [2022-11-19 08:14:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2777 states have (on average 2.951386388188693) internal successors, (8196), 2778 states have internal predecessors, (8196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 8196 transitions. [2022-11-19 08:14:55,090 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 8196 transitions. Word has length 21 [2022-11-19 08:14:55,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:55,090 INFO L495 AbstractCegarLoop]: Abstraction has 2779 states and 8196 transitions. [2022-11-19 08:14:55,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 8196 transitions. [2022-11-19 08:14:55,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:14:55,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:55,093 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:55,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (202)] Ended with exit code 0 [2022-11-19 08:14:55,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (203)] Ended with exit code 0 [2022-11-19 08:14:55,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (204)] Ended with exit code 0 [2022-11-19 08:14:55,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 202 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,203 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,204 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:55,694 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:14:55,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:55,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1756855140, now seen corresponding path program 9 times [2022-11-19 08:14:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:14:55,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535871922] [2022-11-19 08:14:55,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:14:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:14:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:14:55,695 INFO L229 MonitoredProcess]: Starting monitored process 205 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:14:55,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (205)] Waiting until timeout for monitored process [2022-11-19 08:14:55,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:14:55,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:55,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:14:55,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:56,142 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2790 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_199| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_199| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2790) |v_ULTIMATE.start_main_~#id1~0#1.base_199| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_199|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:14:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:14:56,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:14:56,258 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:14:56,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535871922] [2022-11-19 08:14:56,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535871922] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:56,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1972644761] [2022-11-19 08:14:56,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:14:56,258 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:14:56,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:14:56,259 INFO L229 MonitoredProcess]: Starting monitored process 206 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:14:56,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (206)] Waiting until timeout for monitored process [2022-11-19 08:14:56,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:14:56,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:56,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:14:56,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:56,825 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2806 (_ BitVec 1)) (v_ArrVal_2805 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_200| (_ BitVec 32))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_200| v_ArrVal_2806) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2805) |v_ULTIMATE.start_main_~#id1~0#1.base_200| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_200| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_200|)))) is different from true [2022-11-19 08:14:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 18 not checked. [2022-11-19 08:14:56,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:14:56,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1972644761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:56,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034228209] [2022-11-19 08:14:56,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:14:56,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:56,935 INFO L229 MonitoredProcess]: Starting monitored process 207 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:56,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (207)] Waiting until timeout for monitored process [2022-11-19 08:14:57,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 08:14:57,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:14:57,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:14:57,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:14:59,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:59,489 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:14:59,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034228209] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:59,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:14:59,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:14:59,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670359714] [2022-11-19 08:14:59,490 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:14:59,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:14:59,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:14:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:14:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:14:59,491 INFO L87 Difference]: Start difference. First operand 2779 states and 8196 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:59,513 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_201| (_ BitVec 32)) (v_ArrVal_2822 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_201| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2822) |v_ULTIMATE.start_main_~#id1~0#1.base_201| (_ bv0 1))) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_201|) (_ bv0 1))))) (exists ((v_ArrVal_2806 (_ BitVec 1)) (v_ArrVal_2805 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_200| (_ BitVec 32))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_200| v_ArrVal_2806) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2805) |v_ULTIMATE.start_main_~#id1~0#1.base_200| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_200| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_200|)))) (exists ((v_ArrVal_2790 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_199| (_ BitVec 32))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_199| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2790) |v_ULTIMATE.start_main_~#id1~0#1.base_199| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_199|)) (= (_ bv0 1) (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:14:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:59,531 INFO L93 Difference]: Finished difference Result 2961 states and 8568 transitions. [2022-11-19 08:14:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:14:59,532 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-19 08:14:59,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:59,536 INFO L225 Difference]: With dead ends: 2961 [2022-11-19 08:14:59,536 INFO L226 Difference]: Without dead ends: 2961 [2022-11-19 08:14:59,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:14:59,537 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:59,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-11-19 08:14:59,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-11-19 08:14:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2937. [2022-11-19 08:14:59,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2935 states have (on average 2.910391822827939) internal successors, (8542), 2936 states have internal predecessors, (8542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 8542 transitions. [2022-11-19 08:14:59,573 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 8542 transitions. Word has length 21 [2022-11-19 08:14:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:59,574 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 8542 transitions. [2022-11-19 08:14:59,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:14:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 8542 transitions. [2022-11-19 08:14:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:14:59,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:59,576 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:59,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (206)] Ended with exit code 0 [2022-11-19 08:14:59,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (205)] Ended with exit code 0 [2022-11-19 08:14:59,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (207)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:00,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 206 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,205 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,207 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:00,177 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:00,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:00,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1434040245, now seen corresponding path program 10 times [2022-11-19 08:15:00,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:00,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191563271] [2022-11-19 08:15:00,178 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:15:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:00,179 INFO L229 MonitoredProcess]: Starting monitored process 208 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:00,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (208)] Waiting until timeout for monitored process [2022-11-19 08:15:00,396 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:15:00,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:00,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:15:00,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:00,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:04,727 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:04,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191563271] [2022-11-19 08:15:04,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191563271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:04,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [921832153] [2022-11-19 08:15:04,727 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:15:04,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:04,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:04,728 INFO L229 MonitoredProcess]: Starting monitored process 209 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:04,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (209)] Waiting until timeout for monitored process [2022-11-19 08:15:05,144 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:15:05,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:05,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:05,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:05,576 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_203| (_ BitVec 32)) (v_ArrVal_2854 (_ BitVec 1)) (v_ArrVal_2855 (_ BitVec 1))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_203|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_203| v_ArrVal_2855) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2854) |v_ULTIMATE.start_main_~#id1~0#1.base_203| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_203| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:15:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-19 08:15:05,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:05,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [921832153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:05,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096049674] [2022-11-19 08:15:05,646 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 08:15:05,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:05,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:05,647 INFO L229 MonitoredProcess]: Starting monitored process 210 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:05,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (210)] Waiting until timeout for monitored process [2022-11-19 08:15:05,878 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 08:15:05,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:05,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:15:05,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:06,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:06,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096049674] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:06,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:06,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:15:06,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155343884] [2022-11-19 08:15:06,150 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:06,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:15:06,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:06,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:15:06,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:15:06,151 INFO L87 Difference]: Start difference. First operand 2937 states and 8542 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:06,164 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2838 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_202| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_202| (_ bv1 1)))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_202|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2838) |v_ULTIMATE.start_main_~#id1~0#1.base_202| (_ bv0 1))) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|))))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_203| (_ BitVec 32)) (v_ArrVal_2854 (_ BitVec 1)) (v_ArrVal_2855 (_ BitVec 1))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_203|) (_ bv0 1)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_203| v_ArrVal_2855) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2854) |v_ULTIMATE.start_main_~#id1~0#1.base_203| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_203| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|))))) is different from true [2022-11-19 08:15:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:06,177 INFO L93 Difference]: Finished difference Result 3067 states and 8794 transitions. [2022-11-19 08:15:06,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:06,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:15:06,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:06,199 INFO L225 Difference]: With dead ends: 3067 [2022-11-19 08:15:06,199 INFO L226 Difference]: Without dead ends: 3067 [2022-11-19 08:15:06,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:15:06,200 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:06,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:15:06,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2022-11-19 08:15:06,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 2937. [2022-11-19 08:15:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2935 states have (on average 2.910391822827939) internal successors, (8542), 2936 states have internal predecessors, (8542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 8542 transitions. [2022-11-19 08:15:06,278 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 8542 transitions. Word has length 22 [2022-11-19 08:15:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:06,278 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 8542 transitions. [2022-11-19 08:15:06,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 8542 transitions. [2022-11-19 08:15:06,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:15:06,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:06,282 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:06,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (210)] Ended with exit code 0 [2022-11-19 08:15:06,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (208)] Ended with exit code 0 [2022-11-19 08:15:06,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (209)] Ended with exit code 0 [2022-11-19 08:15:06,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 210 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,208 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,209 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:06,886 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:06,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1424065065, now seen corresponding path program 11 times [2022-11-19 08:15:06,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:06,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668848102] [2022-11-19 08:15:06,887 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:15:06,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:06,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:06,888 INFO L229 MonitoredProcess]: Starting monitored process 211 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:06,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (211)] Waiting until timeout for monitored process [2022-11-19 08:15:07,112 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:15:07,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:07,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:15:07,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:07,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:09,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:09,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668848102] [2022-11-19 08:15:09,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668848102] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:09,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [942189297] [2022-11-19 08:15:09,456 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:15:09,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:09,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:09,457 INFO L229 MonitoredProcess]: Starting monitored process 212 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:09,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (212)] Waiting until timeout for monitored process [2022-11-19 08:15:09,884 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:15:09,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:09,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:09,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:10,092 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2903 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_206| (_ BitVec 32)) (v_ArrVal_2901 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_206| v_ArrVal_2901) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2903) |v_ULTIMATE.start_main_~#id1~0#1.base_206| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_206|) (_ bv0 1)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_206| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:15:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 11 not checked. [2022-11-19 08:15:10,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:10,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [942189297] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:10,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13677557] [2022-11-19 08:15:10,170 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-19 08:15:10,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:10,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:10,171 INFO L229 MonitoredProcess]: Starting monitored process 213 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:10,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (213)] Waiting until timeout for monitored process [2022-11-19 08:15:10,419 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-11-19 08:15:10,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:10,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:15:10,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:10,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:10,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13677557] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:10,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:10,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 6 [2022-11-19 08:15:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993004883] [2022-11-19 08:15:10,699 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:10,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:15:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:10,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:15:10,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=27, Unknown=2, NotChecked=10, Total=56 [2022-11-19 08:15:10,700 INFO L87 Difference]: Start difference. First operand 2937 states and 8542 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:10,715 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2903 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_206| (_ BitVec 32)) (v_ArrVal_2901 (_ BitVec 1))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_206| v_ArrVal_2901) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2903) |v_ULTIMATE.start_main_~#id1~0#1.base_206| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_206|) (_ bv0 1)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_206| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) (exists ((v_ArrVal_2886 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_205| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_205| (_ bv1 1)))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_205|) (_ bv0 1)) (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2886) |v_ULTIMATE.start_main_~#id1~0#1.base_205| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:15:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:10,745 INFO L93 Difference]: Finished difference Result 3067 states and 8794 transitions. [2022-11-19 08:15:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:10,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:15:10,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:10,763 INFO L225 Difference]: With dead ends: 3067 [2022-11-19 08:15:10,764 INFO L226 Difference]: Without dead ends: 3067 [2022-11-19 08:15:10,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:15:10,764 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:10,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:15:10,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2022-11-19 08:15:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 2937. [2022-11-19 08:15:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2935 states have (on average 2.910391822827939) internal successors, (8542), 2936 states have internal predecessors, (8542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 8542 transitions. [2022-11-19 08:15:10,829 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 8542 transitions. Word has length 22 [2022-11-19 08:15:10,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:10,830 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 8542 transitions. [2022-11-19 08:15:10,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 8542 transitions. [2022-11-19 08:15:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:15:10,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:10,834 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:10,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (212)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:11,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (213)] Ended with exit code 0 [2022-11-19 08:15:11,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (211)] Ended with exit code 0 [2022-11-19 08:15:11,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 212 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,213 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,211 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:11,439 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1486626165, now seen corresponding path program 12 times [2022-11-19 08:15:11,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:11,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373036642] [2022-11-19 08:15:11,440 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:15:11,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:11,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:11,441 INFO L229 MonitoredProcess]: Starting monitored process 214 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:11,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (214)] Waiting until timeout for monitored process [2022-11-19 08:15:11,673 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:15:11,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:11,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:15:11,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:11,914 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((v_ArrVal_2934 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_208| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_208| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_208|)) (= (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2934) |v_ULTIMATE.start_main_~#id1~0#1.base_208| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:15:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 19 not checked. [2022-11-19 08:15:11,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:15:12,041 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:12,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373036642] [2022-11-19 08:15:12,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373036642] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:12,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2000314973] [2022-11-19 08:15:12,041 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:15:12,041 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:12,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:12,043 INFO L229 MonitoredProcess]: Starting monitored process 215 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:12,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (215)] Waiting until timeout for monitored process [2022-11-19 08:15:12,482 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:15:12,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:12,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:12,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:12,670 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2949 (_ BitVec 1)) (v_ArrVal_2951 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_209| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_209|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_209| v_ArrVal_2949) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2951) |v_ULTIMATE.start_main_~#id1~0#1.base_209| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_209| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:15:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 19 not checked. [2022-11-19 08:15:12,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:15:12,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2000314973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:12,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787704513] [2022-11-19 08:15:12,757 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:15:12,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:12,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:12,758 INFO L229 MonitoredProcess]: Starting monitored process 216 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:12,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (216)] Waiting until timeout for monitored process [2022-11-19 08:15:13,025 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-19 08:15:13,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:13,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:15:13,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:15:15,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:15,374 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 08:15:15,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787704513] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:15,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:15,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 8 [2022-11-19 08:15:15,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328688438] [2022-11-19 08:15:15,375 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:15,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:15:15,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:15:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=37, Unknown=3, NotChecked=26, Total=90 [2022-11-19 08:15:15,376 INFO L87 Difference]: Start difference. First operand 2937 states and 8542 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:15,398 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2949 (_ BitVec 1)) (v_ArrVal_2951 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_209| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_209|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_209| v_ArrVal_2949) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2951) |v_ULTIMATE.start_main_~#id1~0#1.base_209| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_209| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_210| (_ BitVec 32)) (v_ArrVal_2965 (_ BitVec 1))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_210| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_210|)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2965) |v_ULTIMATE.start_main_~#id1~0#1.base_210| (_ bv0 1)))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((v_ArrVal_2934 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_208| (_ BitVec 32))) (let ((.cse1 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_208| (_ bv1 1)))) (and (= (_ bv0 1) (select .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_208|)) (= (store (store .cse1 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2934) |v_ULTIMATE.start_main_~#id1~0#1.base_208| (_ bv0 1)) |c_#valid|))))) is different from true [2022-11-19 08:15:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:15,416 INFO L93 Difference]: Finished difference Result 2940 states and 8536 transitions. [2022-11-19 08:15:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:15,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:15:15,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:15,427 INFO L225 Difference]: With dead ends: 2940 [2022-11-19 08:15:15,428 INFO L226 Difference]: Without dead ends: 2940 [2022-11-19 08:15:15,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=26, Invalid=38, Unknown=4, NotChecked=42, Total=110 [2022-11-19 08:15:15,428 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:15,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-11-19 08:15:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2022-11-19 08:15:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2548. [2022-11-19 08:15:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2546 states have (on average 3.0259230164964652) internal successors, (7704), 2547 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:15,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 7704 transitions. [2022-11-19 08:15:15,483 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 7704 transitions. Word has length 22 [2022-11-19 08:15:15,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:15,483 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 7704 transitions. [2022-11-19 08:15:15,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:15,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 7704 transitions. [2022-11-19 08:15:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:15:15,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:15,487 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:15,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (216)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:15,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (214)] Ended with exit code 0 [2022-11-19 08:15:15,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (215)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:16,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 216 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,214 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,215 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:16,095 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:16,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:16,095 INFO L85 PathProgramCache]: Analyzing trace with hash -76549790, now seen corresponding path program 6 times [2022-11-19 08:15:16,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:16,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130020963] [2022-11-19 08:15:16,095 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:15:16,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:16,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:16,096 INFO L229 MonitoredProcess]: Starting monitored process 217 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:16,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (217)] Waiting until timeout for monitored process [2022-11-19 08:15:16,317 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-19 08:15:16,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:16,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:15:16,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:16,458 WARN L859 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32))) (exists ((v_ArrVal_2981 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_211| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_211| (_ bv1 1)))) (and (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2981) |v_ULTIMATE.start_main_~#id1~0#1.base_211| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_211|)) (= (_ bv0 1) (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|)))))) is different from true [2022-11-19 08:15:16,601 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 11 not checked. [2022-11-19 08:15:16,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:16,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:16,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130020963] [2022-11-19 08:15:16,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130020963] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:16,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [743540909] [2022-11-19 08:15:16,673 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:15:16,673 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:16,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:16,674 INFO L229 MonitoredProcess]: Starting monitored process 218 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:16,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (218)] Waiting until timeout for monitored process [2022-11-19 08:15:17,081 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-19 08:15:17,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:17,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:17,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:17,202 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_212| (_ BitVec 32)) (v_ArrVal_2999 (_ BitVec 1)) (v_ArrVal_2998 (_ BitVec 1))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_212| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_212| v_ArrVal_2999) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2998) |v_ULTIMATE.start_main_~#id1~0#1.base_212| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_212|)))) is different from true [2022-11-19 08:15:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 11 not checked. [2022-11-19 08:15:17,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:17,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [743540909] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:17,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109146952] [2022-11-19 08:15:17,360 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-19 08:15:17,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:17,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:17,361 INFO L229 MonitoredProcess]: Starting monitored process 219 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:17,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (219)] Waiting until timeout for monitored process [2022-11-19 08:15:17,601 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-19 08:15:17,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:17,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:17,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:17,711 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#id1~0#1.base_213| (_ BitVec 32)) (v_ArrVal_2999 (_ BitVec 1)) (v_ArrVal_2998 (_ BitVec 1))) (and (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_213| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_213|) (_ bv0 1)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_213| v_ArrVal_2999) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2998) |v_ULTIMATE.start_main_~#id1~0#1.base_213| (_ bv0 1))))) is different from true [2022-11-19 08:15:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 11 not checked. [2022-11-19 08:15:17,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-19 08:15:17,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109146952] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:17,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:17,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:15:17,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551492958] [2022-11-19 08:15:17,877 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:17,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:15:17,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:15:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=21, Unknown=3, NotChecked=30, Total=72 [2022-11-19 08:15:17,878 INFO L87 Difference]: Start difference. First operand 2548 states and 7704 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:19,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:19,951 INFO L93 Difference]: Finished difference Result 2767 states and 8155 transitions. [2022-11-19 08:15:19,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:19,951 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:15:19,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:19,959 INFO L225 Difference]: With dead ends: 2767 [2022-11-19 08:15:19,959 INFO L226 Difference]: Without dead ends: 2767 [2022-11-19 08:15:19,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2022-11-19 08:15:19,960 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:19,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2022-11-19 08:15:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2022-11-19 08:15:20,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2548. [2022-11-19 08:15:20,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2546 states have (on average 3.0259230164964652) internal successors, (7704), 2547 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 7704 transitions. [2022-11-19 08:15:20,014 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 7704 transitions. Word has length 22 [2022-11-19 08:15:20,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:20,015 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 7704 transitions. [2022-11-19 08:15:20,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 7704 transitions. [2022-11-19 08:15:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:15:20,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:20,019 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:20,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (219)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:20,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (218)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:20,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (217)] Ended with exit code 0 [2022-11-19 08:15:20,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 219 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,218 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,217 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:20,626 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:20,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2095496094, now seen corresponding path program 7 times [2022-11-19 08:15:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:20,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171847799] [2022-11-19 08:15:20,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:15:20,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:20,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:20,628 INFO L229 MonitoredProcess]: Starting monitored process 220 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:20,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (220)] Waiting until timeout for monitored process [2022-11-19 08:15:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:20,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 08:15:20,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:21,076 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:21,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:25,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:25,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171847799] [2022-11-19 08:15:25,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171847799] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:25,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065281262] [2022-11-19 08:15:25,190 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:15:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:25,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:25,191 INFO L229 MonitoredProcess]: Starting monitored process 221 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:25,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (221)] Waiting until timeout for monitored process [2022-11-19 08:15:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:25,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:25,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:26,529 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3046 (_ BitVec 1)) (v_ArrVal_3047 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_215| (_ BitVec 32))) (and (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_215| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_215|)) (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_215| v_ArrVal_3046) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_3047) |v_ULTIMATE.start_main_~#id1~0#1.base_215| (_ bv0 1))))) is different from true [2022-11-19 08:15:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-19 08:15:26,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:26,596 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:26,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2065281262] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:26,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473933022] [2022-11-19 08:15:26,596 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-19 08:15:26,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:26,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:26,597 INFO L229 MonitoredProcess]: Starting monitored process 222 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:26,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (222)] Waiting until timeout for monitored process [2022-11-19 08:15:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:26,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:26,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:29,053 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3046 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_216| (_ BitVec 32)) (v_ArrVal_3047 (_ BitVec 1))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_216| v_ArrVal_3046) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_3047) |v_ULTIMATE.start_main_~#id1~0#1.base_216| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_216|)) (= (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_216| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)))) is different from true [2022-11-19 08:15:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-19 08:15:29,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:29,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473933022] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:29,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:29,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:15:29,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737283474] [2022-11-19 08:15:29,124 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:29,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:15:29,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:29,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:15:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:15:29,124 INFO L87 Difference]: Start difference. First operand 2548 states and 7704 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:29,160 INFO L93 Difference]: Finished difference Result 2678 states and 7957 transitions. [2022-11-19 08:15:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:29,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:15:29,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:29,169 INFO L225 Difference]: With dead ends: 2678 [2022-11-19 08:15:29,169 INFO L226 Difference]: Without dead ends: 2678 [2022-11-19 08:15:29,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=19, Invalid=28, Unknown=3, NotChecked=22, Total=72 [2022-11-19 08:15:29,169 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:29,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 21 Unchecked, 0.0s Time] [2022-11-19 08:15:29,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-11-19 08:15:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2548. [2022-11-19 08:15:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2546 states have (on average 3.0259230164964652) internal successors, (7704), 2547 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 7704 transitions. [2022-11-19 08:15:29,221 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 7704 transitions. Word has length 22 [2022-11-19 08:15:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:29,221 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 7704 transitions. [2022-11-19 08:15:29,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 7704 transitions. [2022-11-19 08:15:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 08:15:29,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:29,225 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:29,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (222)] Ended with exit code 0 [2022-11-19 08:15:29,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (220)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:29,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (221)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:29,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 222 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,220 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,221 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:29,832 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 131069012, now seen corresponding path program 8 times [2022-11-19 08:15:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:29,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820317007] [2022-11-19 08:15:29,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:15:29,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:29,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:29,834 INFO L229 MonitoredProcess]: Starting monitored process 223 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:29,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (223)] Waiting until timeout for monitored process [2022-11-19 08:15:30,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:15:30,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:30,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 08:15:30,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:30,196 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3078 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_217| (_ BitVec 32))) (let ((.cse0 (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_217| (_ bv1 1)))) (and (= (select .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base|) (_ bv0 1)) (= |c_#valid| (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_3078) |v_ULTIMATE.start_main_~#id1~0#1.base_217| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_217|) (_ bv0 1))))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| (_ bv0 32)))) is different from true [2022-11-19 08:15:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-19 08:15:30,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:30,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:30,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820317007] [2022-11-19 08:15:30,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820317007] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:30,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [633726250] [2022-11-19 08:15:30,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:15:30,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:30,420 INFO L229 MonitoredProcess]: Starting monitored process 224 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:30,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (224)] Waiting until timeout for monitored process [2022-11-19 08:15:30,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:15:30,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:30,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:30,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:30,980 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3093 (_ BitVec 1)) (v_ArrVal_3094 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_218| (_ BitVec 32))) (and (= |c_#valid| (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_218| v_ArrVal_3093) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_3094) |v_ULTIMATE.start_main_~#id1~0#1.base_218| (_ bv0 1))) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_218| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_218|) (_ bv0 1)))) is different from true [2022-11-19 08:15:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-19 08:15:31,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:31,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [633726250] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:31,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596867380] [2022-11-19 08:15:31,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:15:31,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:31,163 INFO L229 MonitoredProcess]: Starting monitored process 225 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:31,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (225)] Waiting until timeout for monitored process [2022-11-19 08:15:31,468 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:15:31,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:31,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 08:15:31,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:31,564 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3093 (_ BitVec 1)) (v_ArrVal_3094 (_ BitVec 1)) (|v_ULTIMATE.start_main_~#id1~0#1.base_219| (_ BitVec 32))) (and (= (store (store (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_219| v_ArrVal_3093) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_3094) |v_ULTIMATE.start_main_~#id1~0#1.base_219| (_ bv0 1)) |c_#valid|) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_219|) (_ bv0 1)) (= (_ bv0 1) (select (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#id1~0#1.base_219| (_ bv1 1)) |c_ULTIMATE.start_main_~#id2~0#1.base|)))) is different from true [2022-11-19 08:15:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 1 not checked. [2022-11-19 08:15:31,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-19 08:15:31,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596867380] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:31,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:31,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2, 2, 2, 2] total 7 [2022-11-19 08:15:31,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236479556] [2022-11-19 08:15:31,749 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:31,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:15:31,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:31,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:15:31,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=21, Unknown=3, NotChecked=30, Total=72 [2022-11-19 08:15:31,750 INFO L87 Difference]: Start difference. First operand 2548 states and 7704 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:31,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:31,848 INFO L93 Difference]: Finished difference Result 2539 states and 7685 transitions. [2022-11-19 08:15:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:15:31,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-19 08:15:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:31,857 INFO L225 Difference]: With dead ends: 2539 [2022-11-19 08:15:31,857 INFO L226 Difference]: Without dead ends: 2539 [2022-11-19 08:15:31,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=30, Unknown=3, NotChecked=36, Total=90 [2022-11-19 08:15:31,858 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:31,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 31 Unchecked, 0.0s Time] [2022-11-19 08:15:31,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2022-11-19 08:15:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2302. [2022-11-19 08:15:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2300 states have (on average 3.1243478260869564) internal successors, (7186), 2301 states have internal predecessors, (7186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 7186 transitions. [2022-11-19 08:15:31,932 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 7186 transitions. Word has length 22 [2022-11-19 08:15:31,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:31,932 INFO L495 AbstractCegarLoop]: Abstraction has 2302 states and 7186 transitions. [2022-11-19 08:15:31,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:31,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 7186 transitions. [2022-11-19 08:15:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 08:15:31,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:31,937 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:31,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (223)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:32,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (225)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:32,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (224)] Forceful destruction successful, exit code 0 [2022-11-19 08:15:32,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 223 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,225 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,224 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:32,550 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:15:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1832307417, now seen corresponding path program 20 times [2022-11-19 08:15:32,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:15:32,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255189417] [2022-11-19 08:15:32,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:15:32,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:15:32,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:15:32,552 INFO L229 MonitoredProcess]: Starting monitored process 226 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:15:32,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (226)] Waiting until timeout for monitored process [2022-11-19 08:15:32,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:15:32,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:32,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 08:15:32,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:15:33,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:35,288 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:15:35,289 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:15:35,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255189417] [2022-11-19 08:15:35,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255189417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:35,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1878175193] [2022-11-19 08:15:35,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:15:35,289 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:15:35,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:15:35,290 INFO L229 MonitoredProcess]: Starting monitored process 227 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:15:35,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (227)] Waiting until timeout for monitored process [2022-11-19 08:15:35,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:15:35,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:35,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 08:15:35,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:15:35,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:15:36,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1878175193] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:36,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607451293] [2022-11-19 08:15:36,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:15:36,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:15:36,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:36,038 INFO L229 MonitoredProcess]: Starting monitored process 228 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:15:36,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (228)] Waiting until timeout for monitored process [2022-11-19 08:15:36,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:15:36,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:15:36,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 08:15:36,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:15:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:15:36,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:15:36,598 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:15:36,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607451293] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:15:36,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:15:36,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21, 21, 21, 21] total 42 [2022-11-19 08:15:36,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260301889] [2022-11-19 08:15:36,599 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:15:36,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-19 08:15:36,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:15:36,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-19 08:15:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1701, Unknown=0, NotChecked=0, Total=1892 [2022-11-19 08:15:36,600 INFO L87 Difference]: Start difference. First operand 2302 states and 7186 transitions. Second operand has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:59,691 INFO L93 Difference]: Finished difference Result 5850 states and 15522 transitions. [2022-11-19 08:15:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-11-19 08:15:59,692 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-19 08:15:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:59,703 INFO L225 Difference]: With dead ends: 5850 [2022-11-19 08:15:59,703 INFO L226 Difference]: Without dead ends: 5850 [2022-11-19 08:15:59,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3710 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=2411, Invalid=11631, Unknown=0, NotChecked=0, Total=14042 [2022-11-19 08:15:59,705 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1411 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5004 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 5004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:59,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 0 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 5004 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 08:15:59,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2022-11-19 08:15:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 2744. [2022-11-19 08:15:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2742 states have (on average 3.161560904449307) internal successors, (8669), 2743 states have internal predecessors, (8669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:59,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 8669 transitions. [2022-11-19 08:15:59,785 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 8669 transitions. Word has length 27 [2022-11-19 08:15:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:59,786 INFO L495 AbstractCegarLoop]: Abstraction has 2744 states and 8669 transitions. [2022-11-19 08:15:59,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:15:59,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 8669 transitions. [2022-11-19 08:15:59,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 08:15:59,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:59,792 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:59,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (227)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:00,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (228)] Ended with exit code 0 [2022-11-19 08:16:00,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (226)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:00,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 227 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,228 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,226 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:00,395 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-19 08:16:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash -450023006, now seen corresponding path program 21 times [2022-11-19 08:16:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:16:00,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400426632] [2022-11-19 08:16:00,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:16:00,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:00,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:16:00,397 INFO L229 MonitoredProcess]: Starting monitored process 229 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:16:00,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (229)] Waiting until timeout for monitored process [2022-11-19 08:16:00,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-11-19 08:16:00,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-19 08:16:00,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:16:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:16:00,794 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 08:16:00,794 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:16:00,795 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2022-11-19 08:16:00,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-19 08:16:00,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-19 08:16:00,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-19 08:16:00,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-19 08:16:00,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-19 08:16:00,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-19 08:16:00,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-19 08:16:00,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (229)] Ended with exit code 0 [2022-11-19 08:16:01,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 229 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:16:01,014 INFO L444 BasicCegarLoop]: Path program histogram: [21, 14, 12, 8, 8, 7, 7, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:01,018 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 08:16:01,018 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:16:01,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:16:01 BasicIcfg [2022-11-19 08:16:01,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:16:01,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:16:01,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:16:01,088 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:16:01,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:09:17" (3/4) ... [2022-11-19 08:16:01,091 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:16:01,092 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:16:01,092 INFO L158 Benchmark]: Toolchain (without parser) took 404476.09ms. Allocated memory was 77.6MB in the beginning and 377.5MB in the end (delta: 299.9MB). Free memory was 59.7MB in the beginning and 233.3MB in the end (delta: -173.6MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2022-11-19 08:16:01,092 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:16:01,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.41ms. Allocated memory is still 77.6MB. Free memory was 59.7MB in the beginning and 51.1MB in the end (delta: 8.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:16:01,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.79ms. Allocated memory is still 77.6MB. Free memory was 51.1MB in the beginning and 49.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:16:01,092 INFO L158 Benchmark]: Boogie Preprocessor took 59.84ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 47.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:16:01,092 INFO L158 Benchmark]: RCFGBuilder took 557.99ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 31.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 08:16:01,093 INFO L158 Benchmark]: TraceAbstraction took 403137.64ms. Allocated memory was 77.6MB in the beginning and 377.5MB in the end (delta: 299.9MB). Free memory was 31.3MB in the beginning and 233.3MB in the end (delta: -202.0MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. [2022-11-19 08:16:01,093 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 377.5MB. Free memory is still 233.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:16:01,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.41ms. Allocated memory is still 77.6MB. Free memory was 59.7MB in the beginning and 51.1MB in the end (delta: 8.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.79ms. Allocated memory is still 77.6MB. Free memory was 51.1MB in the beginning and 49.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.84ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 47.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 557.99ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 31.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 403137.64ms. Allocated memory was 77.6MB in the beginning and 377.5MB in the end (delta: 299.9MB). Free memory was 31.3MB in the beginning and 233.3MB in the end (delta: -202.0MB). Peak memory consumption was 100.1MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 377.5MB. Free memory is still 233.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 81 PlacesBefore, 26 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1298 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 1226 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1015, independent: 984, independent conditional: 0, independent unconditional: 984, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 817, independent: 802, independent conditional: 0, independent unconditional: 802, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 817, independent: 802, independent conditional: 0, independent unconditional: 802, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1015, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 817, unknown conditional: 0, unknown unconditional: 817] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 722]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 722. Possible FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=27, arg={0:0}, argc=27, argv={29:28}, argv={29:28}, i=3, id1={3:0}, id2={7:0}, j=6, pthread_create(&id1, ((void *)0), t1, ((void *)0))=8192] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=27, arg={0:0}, arg={0:0}, arg={0:0}, argc=27, argv={29:28}, argv={29:28}, i=3, id1={3:0}, id2={7:0}, j=6, k=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=8193] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(argc)=27, arg={0:0}, arg={0:0}, arg={0:0}, argc=27, argv={29:28}, argv={29:28}, condI=0, i=3, id1={3:0}, id2={7:0}, j=6, k=0] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=1, k=0] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=3, k=2] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=6, k=5] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=7, k=6] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L696] COND TRUE 1 k < 10 [L698] 1 i = j + 1 [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=10, k=9] [L704] COND TRUE 2 k < 10 [L706] 2 j = i + 1 [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=10, k=10] [L719] 0 int condJ = j >= (2*10 +6); [L721] COND TRUE 0 condI || condJ [L722] 0 reach_error() VAL [\old(argc)=27, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=27, argv={29:28}, argv={29:28}, condI=0, condJ=1, i=25, id1={3:0}, id2={7:0}, j=26, k=10, k=10] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 97 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 402.9s, OverallIterations: 116, TraceHistogramMax: 10, PathProgramHistogramMax: 21, EmptinessCheckTime: 0.2s, AutomataDifference: 116.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10856 SdHoareTripleChecker+Valid, 30.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10856 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 26.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1876 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 887 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25292 IncrementalHoareTripleChecker+Invalid, 28055 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 887 mSolverCounterUnsat, 0 mSDtfsCounter, 25292 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6609 GetRequests, 5144 SyntacticMatches, 41 SemanticMatches, 1424 ConstructedPredicates, 90 IntricatePredicates, 0 DeprecatedPredicates, 18251 ImplicationChecksByTransitivity, 226.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4408occurred in iteration=103, InterpolantAutomatonStates: 1106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 115 MinimizatonAttempts, 92379 StatesRemovedByMinimization, 91 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.2s SsaConstructionTime, 12.3s SatisfiabilityAnalysisTime, 182.3s InterpolantComputationTime, 3529 NumberOfCodeBlocks, 3321 NumberOfCodeBlocksAsserted, 503 NumberOfCheckSat, 5938 ConstructedInterpolants, 2272 QuantifiedInterpolants, 85941 SizeOfPredicates, 476 NumberOfNonLiveVariables, 20261 ConjunctsInSsa, 2411 ConjunctsInUnsatCore, 395 InterpolantComputations, 59 PerfectInterpolantSequences, 6502/10420 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:16:01,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2be76c9d-fd70-4ae1-9d10-3ada2cd0b298/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample