./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/min-3-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/min-3-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bd7b1a8bed68c803bda82a4dd989302b30da7d6d96131ca67565e0ea166dbcb --- 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-38b53e6 [2022-11-25 23:47:52,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:47:52,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:47:52,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:47:52,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:47:52,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:47:52,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:47:52,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:47:52,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:47:52,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:47:52,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:47:52,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:47:52,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:47:52,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:47:52,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:47:52,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:47:52,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:47:52,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:47:52,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:47:52,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:47:52,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:47:52,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:47:52,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:47:52,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:47:52,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:47:52,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:47:52,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:47:52,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:47:52,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:47:52,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:47:52,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:47:52,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:47:52,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:47:52,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:47:52,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:47:52,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:47:52,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:47:52,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:47:52,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:47:52,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:47:52,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:47:52,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:47:52,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:47:52,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:47:52,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:47:52,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:47:52,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:47:52,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:47:52,909 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:47:52,909 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:47:52,909 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:47:52,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:47:52,910 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:47:52,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:47:52,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:47:52,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:47:52,911 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:47:52,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:47:52,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:47:52,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:47:52,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:47:52,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:47:52,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:47:52,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:47:52,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:47:52,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:47:52,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:47:52,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:47:52,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:47:52,915 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:47:52,915 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:47:52,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:47:52,916 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:47:52,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:47:52,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:47:52,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:47:52,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:52,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:47:52,917 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:47:52,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:47:52,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:47:52,918 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:47:52,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:47:52,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:47:52,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:47:52,919 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_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd7b1a8bed68c803bda82a4dd989302b30da7d6d96131ca67565e0ea166dbcb [2022-11-25 23:47:53,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:47:53,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:47:53,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:47:53,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:47:53,246 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:47:53,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-multidimensional/min-3-n-u.c [2022-11-25 23:47:56,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:47:56,570 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:47:56,571 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/sv-benchmarks/c/array-multidimensional/min-3-n-u.c [2022-11-25 23:47:56,577 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/data/5344f9731/1ae664f8acef412ba94af87a2564cd97/FLAG0b8b280b0 [2022-11-25 23:47:56,591 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/data/5344f9731/1ae664f8acef412ba94af87a2564cd97 [2022-11-25 23:47:56,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:47:56,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:47:56,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:56,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:47:56,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:47:56,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548784d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56, skipping insertion in model container [2022-11-25 23:47:56,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:47:56,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:47:56,800 WARN L237 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_8546684d-7536-47ec-a97a-0c9deb75fe3e/sv-benchmarks/c/array-multidimensional/min-3-n-u.c[321,334] [2022-11-25 23:47:56,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:56,861 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:47:56,870 WARN L237 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_8546684d-7536-47ec-a97a-0c9deb75fe3e/sv-benchmarks/c/array-multidimensional/min-3-n-u.c[321,334] [2022-11-25 23:47:56,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:47:56,895 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:47:56,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56 WrapperNode [2022-11-25 23:47:56,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:47:56,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:56,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:47:56,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:47:56,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,951 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2022-11-25 23:47:56,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:47:56,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:47:56,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:47:56,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:47:56,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:47:56,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:47:56,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:47:56,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:47:56,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (1/1) ... [2022-11-25 23:47:56,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:47:57,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:57,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:47:57,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:47:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:47:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:47:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:47:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:47:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:47:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:47:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:47:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:47:57,169 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:47:57,171 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:47:57,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:47:57,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:47:57,575 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-25 23:47:57,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:57 BoogieIcfgContainer [2022-11-25 23:47:57,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:47:57,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:47:57,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:47:57,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:47:57,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:47:56" (1/3) ... [2022-11-25 23:47:57,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc5d87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:57, skipping insertion in model container [2022-11-25 23:47:57,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:47:56" (2/3) ... [2022-11-25 23:47:57,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc5d87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:47:57, skipping insertion in model container [2022-11-25 23:47:57,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:57" (3/3) ... [2022-11-25 23:47:57,588 INFO L112 eAbstractionObserver]: Analyzing ICFG min-3-n-u.c [2022-11-25 23:47:57,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:47:57,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 23:47:57,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:47:57,692 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@531c2b9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:47:57,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-25 23:47:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:47:57,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:57,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:47:57,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:47:57,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:57,708 INFO L85 PathProgramCache]: Analyzing trace with hash 6004372, now seen corresponding path program 1 times [2022-11-25 23:47:57,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:57,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104393388] [2022-11-25 23:47:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:57,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:57,806 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:57,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162082871] [2022-11-25 23:47:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:57,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:57,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:57,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:57,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:47:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:57,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:47:57,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:57,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:57,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:57,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104393388] [2022-11-25 23:47:57,926 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:57,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162082871] [2022-11-25 23:47:57,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162082871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:57,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:57,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:47:57,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410824557] [2022-11-25 23:47:57,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:57,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:57,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:57,968 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.9642857142857142) internal successors, (55), 46 states have internal predecessors, (55), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:58,062 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-25 23:47:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-11-25 23:47:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:58,073 INFO L225 Difference]: With dead ends: 47 [2022-11-25 23:47:58,074 INFO L226 Difference]: Without dead ends: 43 [2022-11-25 23:47:58,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:58,080 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:58,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 27 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:58,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-25 23:47:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-25 23:47:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-11-25 23:47:58,121 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 4 [2022-11-25 23:47:58,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:58,121 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-11-25 23:47:58,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,122 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-11-25 23:47:58,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:47:58,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:58,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:47:58,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:58,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 23:47:58,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:47:58,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:58,329 INFO L85 PathProgramCache]: Analyzing trace with hash 185975571, now seen corresponding path program 1 times [2022-11-25 23:47:58,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:58,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445326251] [2022-11-25 23:47:58,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:58,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:58,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:58,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768571719] [2022-11-25 23:47:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:58,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:58,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:58,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:58,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:47:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:58,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:47:58,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:58,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:58,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445326251] [2022-11-25 23:47:58,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768571719] [2022-11-25 23:47:58,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768571719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:58,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:58,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:58,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764103167] [2022-11-25 23:47:58,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:58,454 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:58,547 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2022-11-25 23:47:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:58,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-11-25 23:47:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:58,549 INFO L225 Difference]: With dead ends: 43 [2022-11-25 23:47:58,549 INFO L226 Difference]: Without dead ends: 40 [2022-11-25 23:47:58,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:58,551 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:58,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:58,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-25 23:47:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-25 23:47:58,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 39 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) [2022-11-25 23:47:58,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2022-11-25 23:47:58,558 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 5 [2022-11-25 23:47:58,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:58,558 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2022-11-25 23:47:58,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-11-25 23:47:58,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:47:58,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:58,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:47:58,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 23:47:58,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:58,768 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:47:58,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:58,769 INFO L85 PathProgramCache]: Analyzing trace with hash 185980042, now seen corresponding path program 1 times [2022-11-25 23:47:58,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:58,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928246257] [2022-11-25 23:47:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:58,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:58,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:58,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910434103] [2022-11-25 23:47:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:58,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:58,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:58,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:58,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:47:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:58,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:47:58,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:58,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:58,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:58,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928246257] [2022-11-25 23:47:58,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:58,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910434103] [2022-11-25 23:47:58,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910434103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:58,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:58,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:58,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102930303] [2022-11-25 23:47:58,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:58,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:58,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:58,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:58,882 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:58,967 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2022-11-25 23:47:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:58,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-11-25 23:47:58,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:58,968 INFO L225 Difference]: With dead ends: 40 [2022-11-25 23:47:58,968 INFO L226 Difference]: Without dead ends: 37 [2022-11-25 23:47:58,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:58,970 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:58,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 21 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-25 23:47:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-25 23:47:58,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 36 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) [2022-11-25 23:47:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-11-25 23:47:58,979 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 5 [2022-11-25 23:47:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:58,979 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-11-25 23:47:58,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-11-25 23:47:58,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:47:58,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:58,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:47:58,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-25 23:47:59,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:59,190 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:47:59,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 186135609, now seen corresponding path program 1 times [2022-11-25 23:47:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:59,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12196006] [2022-11-25 23:47:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:59,199 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:59,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526919885] [2022-11-25 23:47:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:59,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:59,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:59,207 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:59,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:47:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:59,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:47:59,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:59,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:59,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:59,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12196006] [2022-11-25 23:47:59,300 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:59,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526919885] [2022-11-25 23:47:59,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526919885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:59,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:59,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:47:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795956983] [2022-11-25 23:47:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:59,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:59,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:59,302 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:59,426 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2022-11-25 23:47:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:59,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-11-25 23:47:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:59,428 INFO L225 Difference]: With dead ends: 73 [2022-11-25 23:47:59,431 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 23:47:59,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:59,432 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 33 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:59,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 45 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 23:47:59,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2022-11-25 23:47:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.5636363636363637) internal successors, (86), 63 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) [2022-11-25 23:47:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2022-11-25 23:47:59,455 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 5 [2022-11-25 23:47:59,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:59,458 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2022-11-25 23:47:59,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2022-11-25 23:47:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:47:59,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:59,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:47:59,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:47:59,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:59,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:47:59,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:47:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1470275468, now seen corresponding path program 1 times [2022-11-25 23:47:59,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:47:59,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133986849] [2022-11-25 23:47:59,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:59,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:47:59,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:47:59,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133943995] [2022-11-25 23:47:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:47:59,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:47:59,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:47:59,705 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:47:59,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:47:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:47:59,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:47:59,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:47:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:47:59,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:47:59,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:47:59,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133986849] [2022-11-25 23:47:59,789 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:47:59,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133943995] [2022-11-25 23:47:59,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133943995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:47:59,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:47:59,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:47:59,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649090012] [2022-11-25 23:47:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:47:59,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:47:59,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:47:59,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:47:59,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:59,797 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:47:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:47:59,932 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2022-11-25 23:47:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:47:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-11-25 23:47:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:47:59,934 INFO L225 Difference]: With dead ends: 124 [2022-11-25 23:47:59,934 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 23:47:59,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:47:59,936 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:47:59,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:47:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 23:47:59,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 82. [2022-11-25 23:47:59,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 73 states have (on average 1.5068493150684932) internal successors, (110), 81 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:47:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 110 transitions. [2022-11-25 23:47:59,950 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 110 transitions. Word has length 6 [2022-11-25 23:47:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:47:59,951 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 110 transitions. [2022-11-25 23:47:59,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:47:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 110 transitions. [2022-11-25 23:47:59,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:47:59,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:47:59,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:47:59,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:00,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:00,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:00,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1470414076, now seen corresponding path program 1 times [2022-11-25 23:48:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:00,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647980891] [2022-11-25 23:48:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:00,171 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:00,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140887985] [2022-11-25 23:48:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:00,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:00,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:00,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:00,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:48:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:00,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:48:00,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:00,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:48:00,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647980891] [2022-11-25 23:48:00,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140887985] [2022-11-25 23:48:00,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140887985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:00,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:00,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:48:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383579838] [2022-11-25 23:48:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:00,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:48:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:48:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:00,247 INFO L87 Difference]: Start difference. First operand 82 states and 110 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:48:00,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:00,356 INFO L93 Difference]: Finished difference Result 160 states and 214 transitions. [2022-11-25 23:48:00,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:48:00,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2022-11-25 23:48:00,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:00,361 INFO L225 Difference]: With dead ends: 160 [2022-11-25 23:48:00,362 INFO L226 Difference]: Without dead ends: 157 [2022-11-25 23:48:00,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:48:00,368 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 30 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:00,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:00,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-25 23:48:00,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 136. [2022-11-25 23:48:00,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 135 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:00,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2022-11-25 23:48:00,408 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 188 transitions. Word has length 6 [2022-11-25 23:48:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:00,408 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 188 transitions. [2022-11-25 23:48:00,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2022-11-25 23:48:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2022-11-25 23:48:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:48:00,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:00,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:48:00,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:00,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:00,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:00,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash 900041233, now seen corresponding path program 1 times [2022-11-25 23:48:00,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:00,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546162714] [2022-11-25 23:48:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:00,634 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:00,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826966259] [2022-11-25 23:48:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:00,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:00,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:00,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:00,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:48:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:00,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:00,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:00,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:00,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:48:00,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:00,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546162714] [2022-11-25 23:48:00,764 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826966259] [2022-11-25 23:48:00,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826966259] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1952405138] [2022-11-25 23:48:00,782 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-25 23:48:00,782 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:00,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:00,791 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:00,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:00,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:00,896 INFO L321 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2022-11-25 23:48:00,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2022-11-25 23:48:00,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:00,981 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:00,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:01,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:48:01,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 76 [2022-11-25 23:48:01,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:01,540 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:48:01,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 415 treesize of output 331 [2022-11-25 23:48:01,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:01,810 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:02,235 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1320#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~j~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:02,235 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:02,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:02,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-11-25 23:48:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103612095] [2022-11-25 23:48:02,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:02,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:48:02,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:02,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:48:02,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:48:02,239 INFO L87 Difference]: Start difference. First operand 136 states and 188 transitions. Second operand has 6 states, 5 states have (on average 3.2) 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) [2022-11-25 23:48:02,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:02,477 INFO L93 Difference]: Finished difference Result 451 states and 616 transitions. [2022-11-25 23:48:02,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:48:02,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) 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 9 [2022-11-25 23:48:02,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:02,481 INFO L225 Difference]: With dead ends: 451 [2022-11-25 23:48:02,481 INFO L226 Difference]: Without dead ends: 448 [2022-11-25 23:48:02,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:48:02,482 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 280 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:02,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 99 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:48:02,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-25 23:48:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 244. [2022-11-25 23:48:02,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.4127659574468086) internal successors, (332), 243 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:02,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 332 transitions. [2022-11-25 23:48:02,512 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 332 transitions. Word has length 9 [2022-11-25 23:48:02,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:02,512 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 332 transitions. [2022-11-25 23:48:02,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) 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) [2022-11-25 23:48:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 332 transitions. [2022-11-25 23:48:02,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:48:02,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:02,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2022-11-25 23:48:02,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:02,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:02,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:02,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:02,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1625864406, now seen corresponding path program 1 times [2022-11-25 23:48:02,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:02,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137924849] [2022-11-25 23:48:02,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:02,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:02,725 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:02,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85134896] [2022-11-25 23:48:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:02,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:02,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:02,726 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:02,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:48:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:02,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:02,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:48:02,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:48:02,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:02,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137924849] [2022-11-25 23:48:02,805 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:02,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85134896] [2022-11-25 23:48:02,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85134896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:02,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:02,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:48:02,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617133208] [2022-11-25 23:48:02,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:02,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:48:02,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:02,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:48:02,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:48:02,807 INFO L87 Difference]: Start difference. First operand 244 states and 332 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2022-11-25 23:48:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:02,890 INFO L93 Difference]: Finished difference Result 453 states and 610 transitions. [2022-11-25 23:48:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:48:02,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 9 [2022-11-25 23:48:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:02,892 INFO L225 Difference]: With dead ends: 453 [2022-11-25 23:48:02,893 INFO L226 Difference]: Without dead ends: 247 [2022-11-25 23:48:02,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:48:02,895 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 92 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:02,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 42 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:02,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-11-25 23:48:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 244. [2022-11-25 23:48:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3872340425531915) internal successors, (326), 243 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 326 transitions. [2022-11-25 23:48:02,915 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 326 transitions. Word has length 9 [2022-11-25 23:48:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:02,916 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 326 transitions. [2022-11-25 23:48:02,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2022-11-25 23:48:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 326 transitions. [2022-11-25 23:48:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:48:02,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:02,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-25 23:48:02,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:03,122 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:03,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1289722903, now seen corresponding path program 1 times [2022-11-25 23:48:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:03,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339359314] [2022-11-25 23:48:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:03,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:03,133 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:03,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183192792] [2022-11-25 23:48:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:03,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:03,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:03,135 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:03,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 23:48:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:03,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:03,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:48:03,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:48:03,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:03,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339359314] [2022-11-25 23:48:03,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:03,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183192792] [2022-11-25 23:48:03,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183192792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:48:03,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:48:03,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:48:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054168920] [2022-11-25 23:48:03,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:48:03,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:48:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:48:03,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:48:03,207 INFO L87 Difference]: Start difference. First operand 244 states and 326 transitions. Second operand has 4 states, 4 states have (on average 2.25) 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) [2022-11-25 23:48:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:03,281 INFO L93 Difference]: Finished difference Result 470 states and 627 transitions. [2022-11-25 23:48:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:48:03,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) 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 10 [2022-11-25 23:48:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:03,283 INFO L225 Difference]: With dead ends: 470 [2022-11-25 23:48:03,283 INFO L226 Difference]: Without dead ends: 244 [2022-11-25 23:48:03,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:48:03,285 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 45 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:03,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 45 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:03,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-25 23:48:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-25 23:48:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3361702127659574) internal successors, (314), 243 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 314 transitions. [2022-11-25 23:48:03,306 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 314 transitions. Word has length 10 [2022-11-25 23:48:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:03,307 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 314 transitions. [2022-11-25 23:48:03,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) 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) [2022-11-25 23:48:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 314 transitions. [2022-11-25 23:48:03,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:48:03,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:03,308 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 23:48:03,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:03,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:03,518 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:03,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1784075361, now seen corresponding path program 1 times [2022-11-25 23:48:03,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:03,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228430168] [2022-11-25 23:48:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:03,525 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:03,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366861601] [2022-11-25 23:48:03,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:03,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:03,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:03,526 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:03,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 23:48:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:03,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:48:03,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:03,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:48:03,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228430168] [2022-11-25 23:48:03,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366861601] [2022-11-25 23:48:03,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366861601] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [683864785] [2022-11-25 23:48:03,686 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 23:48:03,687 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:03,687 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:03,687 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:03,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:03,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,741 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:03,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:03,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2022-11-25 23:48:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:48:03,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:03,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-25 23:48:04,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:04,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,022 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-25 23:48:04,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 327 [2022-11-25 23:48:04,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:04,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:04,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:04,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,445 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:04,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 155 [2022-11-25 23:48:04,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:04,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:04,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:04,785 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:04,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 149 [2022-11-25 23:48:04,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:05,011 INFO L321 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2022-11-25 23:48:05,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 178 treesize of output 180 [2022-11-25 23:48:05,139 INFO L321 Elim1Store]: treesize reduction 162, result has 8.5 percent of original size [2022-11-25 23:48:05,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 228 treesize of output 212 [2022-11-25 23:48:05,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:05,271 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:05,930 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4227#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:05,930 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:05,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:05,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-25 23:48:05,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79303655] [2022-11-25 23:48:05,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:05,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:48:05,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:05,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:48:05,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-11-25 23:48:05,932 INFO L87 Difference]: Start difference. First operand 244 states and 314 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 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) [2022-11-25 23:48:06,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:06,087 INFO L93 Difference]: Finished difference Result 470 states and 604 transitions. [2022-11-25 23:48:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:48:06,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 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 16 [2022-11-25 23:48:06,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:06,089 INFO L225 Difference]: With dead ends: 470 [2022-11-25 23:48:06,089 INFO L226 Difference]: Without dead ends: 244 [2022-11-25 23:48:06,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-25 23:48:06,090 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 110 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:06,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 60 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:06,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-25 23:48:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2022-11-25 23:48:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.1829787234042553) internal successors, (278), 243 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 278 transitions. [2022-11-25 23:48:06,107 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 278 transitions. Word has length 16 [2022-11-25 23:48:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:06,108 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 278 transitions. [2022-11-25 23:48:06,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 7 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) [2022-11-25 23:48:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 278 transitions. [2022-11-25 23:48:06,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 23:48:06,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:06,109 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2022-11-25 23:48:06,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:06,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:48:06,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2098406220, now seen corresponding path program 2 times [2022-11-25 23:48:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:06,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006091429] [2022-11-25 23:48:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:06,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:06,327 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:06,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57108304] [2022-11-25 23:48:06,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:48:06,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:06,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:06,330 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:06,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 23:48:06,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:48:06,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:48:06,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:06,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 23:48:06,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:06,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 23:48:06,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:06,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006091429] [2022-11-25 23:48:06,485 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:06,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57108304] [2022-11-25 23:48:06,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57108304] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:06,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1297282457] [2022-11-25 23:48:06,488 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-25 23:48:06,488 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:06,489 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:06,489 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:06,489 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:06,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,534 INFO L321 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2022-11-25 23:48:06,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2022-11-25 23:48:06,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,575 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:06,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:06,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:48:06,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-25 23:48:06,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:06,807 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-25 23:48:06,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 327 [2022-11-25 23:48:06,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:06,906 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:11,706 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5286#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~j~0#1| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:11,707 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:11,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:11,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 23:48:11,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819898945] [2022-11-25 23:48:11,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:11,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:48:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:11,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:48:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:48:11,709 INFO L87 Difference]: Start difference. First operand 244 states and 278 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:11,793 INFO L93 Difference]: Finished difference Result 244 states and 278 transitions. [2022-11-25 23:48:11,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:48:11,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 [2022-11-25 23:48:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:11,795 INFO L225 Difference]: With dead ends: 244 [2022-11-25 23:48:11,795 INFO L226 Difference]: Without dead ends: 241 [2022-11-25 23:48:11,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:48:11,796 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 116 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:11,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 42 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:48:11,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-25 23:48:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 217. [2022-11-25 23:48:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 211 states have (on average 1.146919431279621) internal successors, (242), 216 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 242 transitions. [2022-11-25 23:48:11,813 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 242 transitions. Word has length 18 [2022-11-25 23:48:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:11,813 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 242 transitions. [2022-11-25 23:48:11,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 242 transitions. [2022-11-25 23:48:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-25 23:48:11,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:11,815 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 23:48:11,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:12,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:12,020 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:12,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:12,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1732006679, now seen corresponding path program 2 times [2022-11-25 23:48:12,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:12,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956924689] [2022-11-25 23:48:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:12,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:12,033 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:12,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104427084] [2022-11-25 23:48:12,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:48:12,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:12,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:12,035 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:12,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 23:48:12,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:48:12,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:48:12,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:12,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 23:48:12,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-25 23:48:12,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:12,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956924689] [2022-11-25 23:48:12,218 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:12,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104427084] [2022-11-25 23:48:12,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104427084] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:12,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208667753] [2022-11-25 23:48:12,222 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 23:48:12,223 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:12,223 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:12,223 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:12,223 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,269 INFO L321 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2022-11-25 23:48:12,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2022-11-25 23:48:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,313 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:12,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:12,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:48:12,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 76 [2022-11-25 23:48:12,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,538 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:48:12,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 415 treesize of output 331 [2022-11-25 23:48:12,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:12,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:12,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-25 23:48:12,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 159 [2022-11-25 23:48:12,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:12,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:12,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:12,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:13,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:13,007 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:13,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 149 [2022-11-25 23:48:13,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:13,193 INFO L321 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2022-11-25 23:48:13,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 178 treesize of output 180 [2022-11-25 23:48:13,275 INFO L321 Elim1Store]: treesize reduction 162, result has 8.5 percent of original size [2022-11-25 23:48:13,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 228 treesize of output 212 [2022-11-25 23:48:13,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:13,355 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:14,053 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6115#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:14,057 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:14,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:14,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 23:48:14,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991321398] [2022-11-25 23:48:14,058 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:14,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:48:14,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:48:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:48:14,059 INFO L87 Difference]: Start difference. First operand 217 states and 242 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:14,149 INFO L93 Difference]: Finished difference Result 217 states and 242 transitions. [2022-11-25 23:48:14,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:48:14,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 34 [2022-11-25 23:48:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:14,151 INFO L225 Difference]: With dead ends: 217 [2022-11-25 23:48:14,151 INFO L226 Difference]: Without dead ends: 214 [2022-11-25 23:48:14,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-25 23:48:14,152 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 60 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:14,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 27 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:48:14,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-25 23:48:14,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 124. [2022-11-25 23:48:14,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 121 states have (on average 1.1570247933884297) internal successors, (140), 123 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) [2022-11-25 23:48:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2022-11-25 23:48:14,165 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 34 [2022-11-25 23:48:14,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:14,166 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2022-11-25 23:48:14,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2022-11-25 23:48:14,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-25 23:48:14,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:14,167 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 23:48:14,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:14,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:14,377 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:14,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:14,378 INFO L85 PathProgramCache]: Analyzing trace with hash 300686388, now seen corresponding path program 1 times [2022-11-25 23:48:14,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:14,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506596244] [2022-11-25 23:48:14,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:14,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:14,401 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:14,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572647645] [2022-11-25 23:48:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:14,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:14,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:14,403 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:14,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 23:48:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:48:14,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:48:14,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 23:48:14,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 23:48:14,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:14,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506596244] [2022-11-25 23:48:14,648 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:14,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572647645] [2022-11-25 23:48:14,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572647645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:14,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [365414765] [2022-11-25 23:48:14,653 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 23:48:14,654 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:14,654 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:14,654 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:14,654 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:14,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,708 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:14,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:14,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2022-11-25 23:48:14,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:48:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 76 [2022-11-25 23:48:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:14,984 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:48:14,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 415 treesize of output 331 [2022-11-25 23:48:15,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:15,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:15,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:15,328 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:15,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 155 [2022-11-25 23:48:15,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:15,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:15,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:15,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:15,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:15,780 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:15,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 143 [2022-11-25 23:48:15,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:15,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-25 23:48:16,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 147 [2022-11-25 23:48:16,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:16,133 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:16,728 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6846#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:16,728 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:16,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:16,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-25 23:48:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928479171] [2022-11-25 23:48:16,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:16,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 23:48:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 23:48:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:48:16,730 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 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) [2022-11-25 23:48:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:17,042 INFO L93 Difference]: Finished difference Result 353 states and 420 transitions. [2022-11-25 23:48:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:48:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 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 41 [2022-11-25 23:48:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:17,044 INFO L225 Difference]: With dead ends: 353 [2022-11-25 23:48:17,044 INFO L226 Difference]: Without dead ends: 232 [2022-11-25 23:48:17,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=463, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:48:17,047 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 174 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:17,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 111 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:48:17,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-11-25 23:48:17,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-11-25 23:48:17,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 229 states have (on average 1.0829694323144106) internal successors, (248), 231 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2022-11-25 23:48:17,087 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 41 [2022-11-25 23:48:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:17,089 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2022-11-25 23:48:17,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 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) [2022-11-25 23:48:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2022-11-25 23:48:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 23:48:17,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:48:17,093 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-11-25 23:48:17,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:17,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 23:48:17,298 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-25 23:48:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:48:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1362577548, now seen corresponding path program 2 times [2022-11-25 23:48:17,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:48:17,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099328889] [2022-11-25 23:48:17,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:48:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:48:17,316 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:48:17,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990577944] [2022-11-25 23:48:17,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:48:17,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:48:17,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:48:17,318 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:48:17,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 23:48:17,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:48:17,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:48:17,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:48:17,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:48:17,514 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-25 23:48:17,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:48:17,649 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 329 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-25 23:48:17,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:48:17,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099328889] [2022-11-25 23:48:17,650 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:48:17,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990577944] [2022-11-25 23:48:17,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990577944] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:48:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1058023035] [2022-11-25 23:48:17,653 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 23:48:17,653 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:48:17,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:48:17,654 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:48:17,654 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:48:17,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,699 INFO L321 Elim1Store]: treesize reduction 34, result has 35.8 percent of original size [2022-11-25 23:48:17,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 45 [2022-11-25 23:48:17,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,743 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-25 23:48:17,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-25 23:48:17,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:48:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-25 23:48:17,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:48:17,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:17,977 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-25 23:48:17,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 327 [2022-11-25 23:48:18,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:18,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:18,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:18,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,428 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:18,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 155 [2022-11-25 23:48:18,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:18,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:18,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:18,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:18,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:18,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 56 [2022-11-25 23:48:18,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 147 [2022-11-25 23:48:18,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:19,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:19,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2022-11-25 23:48:19,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:48:19,097 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-25 23:48:19,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 143 [2022-11-25 23:48:19,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 27 treesize of output 23 [2022-11-25 23:48:19,191 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:48:20,191 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8124#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1800) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 1800 |ULTIMATE.start_main_~k~0#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-25 23:48:20,192 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:48:20,192 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:48:20,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 23:48:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742197576] [2022-11-25 23:48:20,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:48:20,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:48:20,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:48:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:48:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:48:20,193 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:48:20,292 INFO L93 Difference]: Finished difference Result 232 states and 248 transitions. [2022-11-25 23:48:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:48:20,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 77 [2022-11-25 23:48:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:48:20,293 INFO L225 Difference]: With dead ends: 232 [2022-11-25 23:48:20,293 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:48:20,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 196 SyntacticMatches, 22 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:48:20,295 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:48:20,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:48:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:48:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:48:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:20,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:48:20,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-11-25 23:48:20,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:48:20,297 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:48:20,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:48:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:48:20,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:48:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-25 23:48:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-25 23:48:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-25 23:48:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-25 23:48:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-25 23:48:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-25 23:48:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-25 23:48:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-25 23:48:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-25 23:48:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-25 23:48:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-25 23:48:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-25 23:48:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-25 23:48:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-25 23:48:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-25 23:48:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-25 23:48:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-25 23:48:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-25 23:48:20,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 23:48:20,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 23:48:20,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:48:21,728 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 75) no Hoare annotation was computed. [2022-11-25 23:48:21,728 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-25 23:48:21,728 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-25 23:48:21,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-25 23:48:21,729 INFO L895 garLoopResultBuilder]: At program point L44-2(lines 44 57) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 23:48:21,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-25 23:48:21,729 INFO L899 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2022-11-25 23:48:21,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-25 23:48:21,730 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:48:21,730 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 35) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 23:48:21,730 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 35) no Hoare annotation was computed. [2022-11-25 23:48:21,730 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-25 23:48:21,730 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-25 23:48:21,731 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 73) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-25 23:48:21,731 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 73) no Hoare annotation was computed. [2022-11-25 23:48:21,731 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-25 23:48:21,731 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-25 23:48:21,731 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-25 23:48:21,731 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-25 23:48:21,732 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 33) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-25 23:48:21,732 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 33) no Hoare annotation was computed. [2022-11-25 23:48:21,732 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 55) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 23:48:21,732 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 55) no Hoare annotation was computed. [2022-11-25 23:48:21,732 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L899 garLoopResultBuilder]: For program point L72-1(line 72) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-25 23:48:21,733 INFO L895 garLoopResultBuilder]: At program point L65-2(lines 65 77) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 23:48:21,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-25 23:48:21,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-25 23:48:21,734 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 53) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 1499)) [2022-11-25 23:48:21,734 INFO L899 garLoopResultBuilder]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2022-11-25 23:48:21,734 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-25 23:48:21,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:48:21,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2022-11-25 23:48:21,735 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 37) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 23:48:21,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-25 23:48:21,735 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2022-11-25 23:48:21,735 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-11-25 23:48:21,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2022-11-25 23:48:21,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-25 23:48:21,736 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2022-11-25 23:48:21,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-25 23:48:21,736 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 75) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~n~0#1|) (<= 1800 |ULTIMATE.start_main_~p~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~p~0#1| 1800) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~j~0#1| 2147483646)) [2022-11-25 23:48:21,740 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:48:21,742 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:48:21,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:48:21 BoogieIcfgContainer [2022-11-25 23:48:21,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:48:21,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:48:21,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:48:21,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:48:21,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:47:57" (3/4) ... [2022-11-25 23:48:21,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:48:21,772 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-25 23:48:21,773 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-25 23:48:21,773 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:48:21,773 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:48:21,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:48:21,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:48:21,815 INFO L158 Benchmark]: Toolchain (without parser) took 25219.31ms. Allocated memory was 178.3MB in the beginning and 375.4MB in the end (delta: 197.1MB). Free memory was 148.7MB in the beginning and 207.8MB in the end (delta: -59.1MB). Peak memory consumption was 139.2MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,815 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 121.6MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:48:21,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.82ms. Allocated memory is still 178.3MB. Free memory was 147.8MB in the beginning and 137.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,816 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.87ms. Allocated memory is still 178.3MB. Free memory was 137.5MB in the beginning and 135.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,816 INFO L158 Benchmark]: Boogie Preprocessor took 37.20ms. Allocated memory is still 178.3MB. Free memory was 135.4MB in the beginning and 134.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,816 INFO L158 Benchmark]: RCFGBuilder took 587.81ms. Allocated memory is still 178.3MB. Free memory was 134.3MB in the beginning and 116.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,817 INFO L158 Benchmark]: TraceAbstraction took 24177.78ms. Allocated memory was 178.3MB in the beginning and 375.4MB in the end (delta: 197.1MB). Free memory was 115.4MB in the beginning and 211.0MB in the end (delta: -95.6MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,817 INFO L158 Benchmark]: Witness Printer took 55.40ms. Allocated memory is still 375.4MB. Free memory was 211.0MB in the beginning and 207.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:48:21,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 121.6MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.82ms. Allocated memory is still 178.3MB. Free memory was 147.8MB in the beginning and 137.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.87ms. Allocated memory is still 178.3MB. Free memory was 137.5MB in the beginning and 135.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.20ms. Allocated memory is still 178.3MB. Free memory was 135.4MB in the beginning and 134.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.81ms. Allocated memory is still 178.3MB. Free memory was 134.3MB in the beginning and 116.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 24177.78ms. Allocated memory was 178.3MB in the beginning and 375.4MB in the end (delta: 197.1MB). Free memory was 115.4MB in the beginning and 211.0MB in the end (delta: -95.6MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. * Witness Printer took 55.40ms. Allocated memory is still 375.4MB. Free memory was 211.0MB in the beginning and 207.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 24.1s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1151 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1151 mSDsluCounter, 648 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 318 mSDsCounter, 434 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 631 IncrementalHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 434 mSolverCounterUnsat, 330 mSDtfsCounter, 631 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 628 GetRequests, 509 SyntacticMatches, 28 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=7, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 387 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 93 NumberOfFragments, 306 HoareAnnotationTreeSize, 9 FomulaSimplifications, 369 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7020 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 245 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1186 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1019 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 928/1772 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 1499 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && i <= 2147483646) && 1800 <= p) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((((((0 <= k && m <= 1000) && 1500 <= n) && 1800 <= p) && i <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && p <= 1800) && k <= 2147483646) && j <= 2147483646 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:48:21,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8546684d-7536-47ec-a97a-0c9deb75fe3e/bin/utaipan-ByfvJB40ur/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 Writing output log to file Ultimate.log Result: TRUE