./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-cav19/array_init_nondet_vars.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_nondet_vars.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS --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 b36a429fc2ac304c1da00c90b438bd7c9bbfb7e9d7c6704fc9e7805ab1ca424f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 06:54:35,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:54:35,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:54:35,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:54:35,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:54:35,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:54:35,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:54:35,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:54:35,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:54:35,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:54:35,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:54:35,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:54:35,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:54:35,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:54:35,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:54:35,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:54:35,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:54:35,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:54:35,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:54:35,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:54:35,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:54:35,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:54:35,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:54:35,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:54:35,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:54:35,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:54:35,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:54:35,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:54:35,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:54:35,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:54:35,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:54:35,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:54:35,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:54:35,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:54:35,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:54:35,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:54:35,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:54:35,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:54:35,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:54:35,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:54:35,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:54:35,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:54:35,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:54:35,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:54:35,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:54:35,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:54:35,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:54:35,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:54:35,894 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:54:35,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:54:35,895 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:54:35,895 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:54:35,896 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:54:35,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:54:35,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:54:35,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:54:35,897 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:54:35,898 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:54:35,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:54:35,898 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:54:35,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:54:35,899 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:54:35,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:54:35,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:54:35,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:54:35,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:54:35,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:54:35,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:54:35,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:54:35,902 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:54:35,902 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:54:35,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:54:35,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:54:35,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:54:35,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:54:35,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:54:35,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:54:35,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:54:35,904 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:54:35,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:54:35,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:54:35,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:54:35,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:54:35,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:54:35,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:54:35,906 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_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b36a429fc2ac304c1da00c90b438bd7c9bbfb7e9d7c6704fc9e7805ab1ca424f [2022-11-19 06:54:36,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:54:36,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:54:36,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:54:36,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:54:36,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:54:36,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/array-cav19/array_init_nondet_vars.c [2022-11-19 06:54:36,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/data/a533646e1/a6d61913f6204da3bf414145c99364d4/FLAG4e3b2067b [2022-11-19 06:54:36,766 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:54:36,767 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/sv-benchmarks/c/array-cav19/array_init_nondet_vars.c [2022-11-19 06:54:36,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/data/a533646e1/a6d61913f6204da3bf414145c99364d4/FLAG4e3b2067b [2022-11-19 06:54:37,136 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/data/a533646e1/a6d61913f6204da3bf414145c99364d4 [2022-11-19 06:54:37,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:54:37,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:54:37,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:54:37,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:54:37,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:54:37,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7c6826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37, skipping insertion in model container [2022-11-19 06:54:37,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:54:37,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:54:37,365 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/sv-benchmarks/c/array-cav19/array_init_nondet_vars.c[413,426] [2022-11-19 06:54:37,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:54:37,402 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:54:37,416 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/sv-benchmarks/c/array-cav19/array_init_nondet_vars.c[413,426] [2022-11-19 06:54:37,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:54:37,451 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:54:37,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37 WrapperNode [2022-11-19 06:54:37,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:54:37,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:54:37,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:54:37,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:54:37,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,502 INFO L138 Inliner]: procedures = 15, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-11-19 06:54:37,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:54:37,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:54:37,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:54:37,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:54:37,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:54:37,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:54:37,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:54:37,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:54:37,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (1/1) ... [2022-11-19 06:54:37,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:54:37,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:37,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:54:37,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:54:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:54:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:54:37,644 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:54:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:54:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:54:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:54:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:54:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:54:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:54:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:54:37,713 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:54:37,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:54:37,893 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:54:37,966 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:54:37,966 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:54:37,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:54:37 BoogieIcfgContainer [2022-11-19 06:54:37,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:54:37,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:54:37,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:54:37,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:54:37,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:54:37" (1/3) ... [2022-11-19 06:54:37,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f28cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:54:37, skipping insertion in model container [2022-11-19 06:54:37,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:54:37" (2/3) ... [2022-11-19 06:54:37,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f28cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:54:37, skipping insertion in model container [2022-11-19 06:54:37,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:54:37" (3/3) ... [2022-11-19 06:54:37,980 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_nondet_vars.c [2022-11-19 06:54:37,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:54:37,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-19 06:54:38,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:54:38,055 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;@125835de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:54:38,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-19 06:54:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 16 states have (on average 1.75) internal successors, (28), 26 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 06:54:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 06:54:38,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:38,069 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:38,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:38,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1910959968, now seen corresponding path program 1 times [2022-11-19 06:54:38,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:38,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486454880] [2022-11-19 06:54:38,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:38,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:54:38,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:38,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486454880] [2022-11-19 06:54:38,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486454880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:38,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:38,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:54:38,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186897547] [2022-11-19 06:54:38,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:38,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:54:38,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:38,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:54:38,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:54:38,437 INFO L87 Difference]: Start difference. First operand has 31 states, 16 states have (on average 1.75) internal successors, (28), 26 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:54:38,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:38,570 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2022-11-19 06:54:38,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:54:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 12 [2022-11-19 06:54:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:38,591 INFO L225 Difference]: With dead ends: 55 [2022-11-19 06:54:38,601 INFO L226 Difference]: Without dead ends: 51 [2022-11-19 06:54:38,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:54:38,608 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:38,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 32 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:54:38,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-19 06:54:38,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2022-11-19 06:54:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 28 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 06:54:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-11-19 06:54:38,649 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 12 [2022-11-19 06:54:38,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:38,649 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-11-19 06:54:38,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:54:38,650 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-11-19 06:54:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 06:54:38,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:38,651 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:38,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:54:38,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1742649306, now seen corresponding path program 1 times [2022-11-19 06:54:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:38,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897254375] [2022-11-19 06:54:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:38,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:54:38,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:38,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897254375] [2022-11-19 06:54:38,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897254375] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:38,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436447085] [2022-11-19 06:54:38,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:38,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:38,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:38,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:38,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:54:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:38,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:54:38,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:54:39,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-19 06:54:39,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436447085] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:39,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [858998539] [2022-11-19 06:54:39,267 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-19 06:54:39,270 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:39,275 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:39,281 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:39,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:39,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:39,516 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:54:39,517 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 [2022-11-19 06:54:39,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:39,535 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 26 treesize of output 34 [2022-11-19 06:54:40,137 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-19 06:54:40,139 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:41,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [858998539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:41,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:41,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 17 [2022-11-19 06:54:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551055819] [2022-11-19 06:54:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:41,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 06:54:41,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:41,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 06:54:41,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-11-19 06:54:41,353 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 11 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 06:54:41,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:41,616 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2022-11-19 06:54:41,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 06:54:41,618 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2022-11-19 06:54:41,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:41,619 INFO L225 Difference]: With dead ends: 51 [2022-11-19 06:54:41,619 INFO L226 Difference]: Without dead ends: 47 [2022-11-19 06:54:41,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-11-19 06:54:41,621 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 86 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:41,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 37 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:54:41,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-19 06:54:41,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2022-11-19 06:54:41,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.5) internal successors, (36), 33 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 06:54:41,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-11-19 06:54:41,633 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 14 [2022-11-19 06:54:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:41,634 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-11-19 06:54:41,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 06:54:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-11-19 06:54:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 06:54:41,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:41,635 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:41,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:41,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:41,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1813477465, now seen corresponding path program 1 times [2022-11-19 06:54:41,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:41,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161544743] [2022-11-19 06:54:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:41,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:54:41,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:41,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161544743] [2022-11-19 06:54:41,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161544743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:41,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:41,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:54:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530065368] [2022-11-19 06:54:41,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:41,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:54:41,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:54:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:54:41,959 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:54:42,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:42,026 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-11-19 06:54:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:54:42,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-19 06:54:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:42,030 INFO L225 Difference]: With dead ends: 47 [2022-11-19 06:54:42,030 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 06:54:42,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:54:42,035 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:42,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 53 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:54:42,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 06:54:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2022-11-19 06:54:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 06:54:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2022-11-19 06:54:42,066 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 14 [2022-11-19 06:54:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:42,067 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2022-11-19 06:54:42,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:54:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2022-11-19 06:54:42,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:54:42,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:42,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:42,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:54:42,073 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:42,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1086367805, now seen corresponding path program 1 times [2022-11-19 06:54:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:42,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341757370] [2022-11-19 06:54:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:42,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 06:54:42,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:42,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341757370] [2022-11-19 06:54:42,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341757370] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:42,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236876541] [2022-11-19 06:54:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:42,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:42,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:42,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:42,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:54:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:42,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:54:42,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:54:42,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:54:42,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236876541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:42,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:54:42,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-11-19 06:54:42,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786991413] [2022-11-19 06:54:42,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:42,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:54:42,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:54:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:54:42,302 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:54:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:42,377 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2022-11-19 06:54:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:54:42,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-19 06:54:42,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:42,381 INFO L225 Difference]: With dead ends: 59 [2022-11-19 06:54:42,383 INFO L226 Difference]: Without dead ends: 45 [2022-11-19 06:54:42,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:54:42,388 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:42,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:54:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-19 06:54:42,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2022-11-19 06:54:42,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 35 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 06:54:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-11-19 06:54:42,409 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 17 [2022-11-19 06:54:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:42,415 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-11-19 06:54:42,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 06:54:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-11-19 06:54:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 06:54:42,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:42,417 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:42,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:42,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:42,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:42,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1740787331, now seen corresponding path program 1 times [2022-11-19 06:54:42,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:42,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605931481] [2022-11-19 06:54:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 06:54:42,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:42,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605931481] [2022-11-19 06:54:42,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605931481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:42,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:54:42,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:54:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978832972] [2022-11-19 06:54:42,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:42,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:54:42,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:42,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:54:42,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:54:42,695 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 06:54:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:42,770 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-11-19 06:54:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:54:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2022-11-19 06:54:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:42,771 INFO L225 Difference]: With dead ends: 45 [2022-11-19 06:54:42,772 INFO L226 Difference]: Without dead ends: 43 [2022-11-19 06:54:42,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:54:42,773 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:42,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 53 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:54:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-19 06:54:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-19 06:54:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 37 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 06:54:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2022-11-19 06:54:42,791 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 18 [2022-11-19 06:54:42,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:42,791 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2022-11-19 06:54:42,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 06:54:42,792 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2022-11-19 06:54:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 06:54:42,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:42,793 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:42,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:54:42,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:42,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1385306114, now seen corresponding path program 1 times [2022-11-19 06:54:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:42,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052738084] [2022-11-19 06:54:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:43,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:43,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052738084] [2022-11-19 06:54:43,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052738084] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:43,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351005221] [2022-11-19 06:54:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:43,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:43,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:43,035 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:43,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:54:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:43,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:54:43,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:43,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:43,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351005221] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:43,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1841941919] [2022-11-19 06:54:43,328 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:54:43,328 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:43,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:43,329 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:43,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:43,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:43,475 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:54:43,475 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 [2022-11-19 06:54:43,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:43,493 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 26 treesize of output 34 [2022-11-19 06:54:43,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:43,710 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 33 treesize of output 35 [2022-11-19 06:54:44,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:44,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:44,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:44,077 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:54:44,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 398 treesize of output 350 [2022-11-19 06:54:44,938 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 18 treesize of output 14 [2022-11-19 06:54:45,152 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 18 treesize of output 14 [2022-11-19 06:54:45,344 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-19 06:54:45,345 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:46,815 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '898#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (not (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 06:54:46,815 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:54:46,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:46,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-19 06:54:46,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934155948] [2022-11-19 06:54:46,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:54:46,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 06:54:46,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:46,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 06:54:46,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2022-11-19 06:54:46,818 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 14 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-19 06:54:47,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:47,042 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2022-11-19 06:54:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:54:47,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 24 [2022-11-19 06:54:47,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:47,043 INFO L225 Difference]: With dead ends: 59 [2022-11-19 06:54:47,044 INFO L226 Difference]: Without dead ends: 57 [2022-11-19 06:54:47,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2022-11-19 06:54:47,045 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 96 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:47,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 52 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:54:47,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-19 06:54:47,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-11-19 06:54:47,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 46 states have internal predecessors, (54), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:54:47,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2022-11-19 06:54:47,065 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 24 [2022-11-19 06:54:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:47,066 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2022-11-19 06:54:47,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-19 06:54:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2022-11-19 06:54:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-19 06:54:47,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:47,068 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:47,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:47,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 06:54:47,274 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:47,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:47,274 INFO L85 PathProgramCache]: Analyzing trace with hash 5183475, now seen corresponding path program 1 times [2022-11-19 06:54:47,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:47,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764938392] [2022-11-19 06:54:47,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:47,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 06:54:47,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:47,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764938392] [2022-11-19 06:54:47,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764938392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:47,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706179210] [2022-11-19 06:54:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:47,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:47,364 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:47,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:54:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:47,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 06:54:47,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 06:54:47,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:54:47,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706179210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:47,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:54:47,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-19 06:54:47,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115027249] [2022-11-19 06:54:47,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:47,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 06:54:47,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:47,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 06:54:47,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:54:47,530 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 06:54:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:47,626 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2022-11-19 06:54:47,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:54:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2022-11-19 06:54:47,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:47,627 INFO L225 Difference]: With dead ends: 54 [2022-11-19 06:54:47,628 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 06:54:47,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-19 06:54:47,629 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 45 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:47,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 35 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:54:47,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 06:54:47,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-19 06:54:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 44 states have internal predecessors, (50), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:54:47,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-11-19 06:54:47,641 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 25 [2022-11-19 06:54:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:47,641 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-11-19 06:54:47,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 06:54:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-11-19 06:54:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-19 06:54:47,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:47,642 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:47,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:47,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 06:54:47,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:47,849 INFO L85 PathProgramCache]: Analyzing trace with hash 160687776, now seen corresponding path program 1 times [2022-11-19 06:54:47,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:47,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784287531] [2022-11-19 06:54:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:47,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:48,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:54:48,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:48,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784287531] [2022-11-19 06:54:48,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784287531] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:48,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933209197] [2022-11-19 06:54:48,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:48,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:48,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:48,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:54:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:48,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-19 06:54:48,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:54:48,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 06:54:48,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933209197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:48,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [888553332] [2022-11-19 06:54:48,490 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:54:48,490 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:48,491 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:48,491 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:48,491 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:48,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:48,569 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:54:48,570 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 [2022-11-19 06:54:48,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:48,583 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 26 treesize of output 34 [2022-11-19 06:54:48,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:48,786 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 33 treesize of output 35 [2022-11-19 06:54:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:49,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:49,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:49,055 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:54:49,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 398 treesize of output 350 [2022-11-19 06:54:49,856 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 18 treesize of output 14 [2022-11-19 06:54:50,018 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 18 treesize of output 14 [2022-11-19 06:54:50,190 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-19 06:54:50,191 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:51,769 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1447#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |#NULL.offset| 0) (not (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) 2147483647)) (<= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 06:54:51,769 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:54:51,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:51,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2022-11-19 06:54:51,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489289014] [2022-11-19 06:54:51,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:54:51,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-19 06:54:51,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:51,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-19 06:54:51,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=907, Unknown=0, NotChecked=0, Total=1056 [2022-11-19 06:54:51,771 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 19 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-19 06:54:52,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:52,299 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2022-11-19 06:54:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 06:54:52,300 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) Word has length 26 [2022-11-19 06:54:52,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:52,301 INFO L225 Difference]: With dead ends: 66 [2022-11-19 06:54:52,301 INFO L226 Difference]: Without dead ends: 65 [2022-11-19 06:54:52,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=297, Invalid=1509, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 06:54:52,302 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 97 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:52,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 100 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 06:54:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-19 06:54:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2022-11-19 06:54:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 46 states have internal predecessors, (51), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:54:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-11-19 06:54:52,315 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 26 [2022-11-19 06:54:52,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:52,316 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-11-19 06:54:52,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-19 06:54:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-11-19 06:54:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 06:54:52,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:52,317 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:52,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 06:54:52,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:52,523 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:52,524 INFO L85 PathProgramCache]: Analyzing trace with hash 686353813, now seen corresponding path program 1 times [2022-11-19 06:54:52,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:52,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821642257] [2022-11-19 06:54:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:52,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:52,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:52,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821642257] [2022-11-19 06:54:52,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821642257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:52,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51061916] [2022-11-19 06:54:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:52,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:52,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:52,788 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:52,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 06:54:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:52,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 06:54:52,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:53,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:53,137 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 06:54:53,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51061916] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:53,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [774465634] [2022-11-19 06:54:53,140 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:54:53,140 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:53,140 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:53,140 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:53,141 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:53,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,223 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-19 06:54:53,224 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 26 treesize of output 42 [2022-11-19 06:54:53,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,277 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:54:53,278 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 [2022-11-19 06:54:53,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,456 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 33 treesize of output 35 [2022-11-19 06:54:53,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:53,695 INFO L321 Elim1Store]: treesize reduction 20, result has 42.9 percent of original size [2022-11-19 06:54:53,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 368 treesize of output 341 [2022-11-19 06:54:55,030 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 18 treesize of output 14 [2022-11-19 06:54:55,112 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 18 treesize of output 14 [2022-11-19 06:54:55,508 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 57 for LOIs [2022-11-19 06:54:55,526 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:57,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1801#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1| 2147483648) 0) (<= 1 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 06:54:57,362 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:54:57,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:54:57,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-11-19 06:54:57,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155687530] [2022-11-19 06:54:57,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:54:57,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-19 06:54:57,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-19 06:54:57,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-11-19 06:54:57,364 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 17 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-19 06:54:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:54:57,652 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2022-11-19 06:54:57,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:54:57,652 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) Word has length 27 [2022-11-19 06:54:57,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:54:57,653 INFO L225 Difference]: With dead ends: 59 [2022-11-19 06:54:57,653 INFO L226 Difference]: Without dead ends: 58 [2022-11-19 06:54:57,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=197, Invalid=1063, Unknown=0, NotChecked=0, Total=1260 [2022-11-19 06:54:57,655 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 80 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:54:57,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 62 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:54:57,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-19 06:54:57,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2022-11-19 06:54:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 45 states have internal predecessors, (49), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:54:57,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2022-11-19 06:54:57,666 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 27 [2022-11-19 06:54:57,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:54:57,667 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2022-11-19 06:54:57,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2022-11-19 06:54:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2022-11-19 06:54:57,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 06:54:57,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:54:57,668 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:54:57,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-19 06:54:57,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:57,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:54:57,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:54:57,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1899136287, now seen corresponding path program 1 times [2022-11-19 06:54:57,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:54:57,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738889123] [2022-11-19 06:54:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:57,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:54:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:57,930 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:54:57,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:54:57,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738889123] [2022-11-19 06:54:57,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738889123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:54:57,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959897102] [2022-11-19 06:54:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:54:57,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:54:57,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:54:57,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:54:57,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:54:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:54:58,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:54:58,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:54:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:54:58,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:54:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:54:58,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959897102] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:54:58,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [734366049] [2022-11-19 06:54:58,073 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-19 06:54:58,073 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:54:58,074 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:54:58,074 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:54:58,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:54:58,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:58,166 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-19 06:54:58,167 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 26 treesize of output 42 [2022-11-19 06:54:58,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:58,214 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:54:58,215 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 [2022-11-19 06:54:58,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:58,409 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 33 treesize of output 35 [2022-11-19 06:54:58,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:58,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:58,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:58,631 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-19 06:54:58,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 398 treesize of output 350 [2022-11-19 06:54:59,269 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 18 treesize of output 14 [2022-11-19 06:54:59,422 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 18 treesize of output 14 [2022-11-19 06:54:59,668 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2022-11-19 06:54:59,670 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:01,339 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2130#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483645 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~mem9#1|) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:01,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:01,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:01,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-19 06:55:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346804065] [2022-11-19 06:55:01,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:01,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 06:55:01,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 06:55:01,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2022-11-19 06:55:01,342 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 06:55:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:01,475 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2022-11-19 06:55:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 06:55:01,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-11-19 06:55:01,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:01,477 INFO L225 Difference]: With dead ends: 63 [2022-11-19 06:55:01,477 INFO L226 Difference]: Without dead ends: 61 [2022-11-19 06:55:01,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2022-11-19 06:55:01,479 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:01,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 48 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-19 06:55:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-11-19 06:55:01,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:55:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-11-19 06:55:01,501 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 27 [2022-11-19 06:55:01,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:01,503 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-11-19 06:55:01,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 06:55:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-19 06:55:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 06:55:01,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:01,505 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:01,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:01,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:01,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:01,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1256317172, now seen corresponding path program 1 times [2022-11-19 06:55:01,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:01,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138759680] [2022-11-19 06:55:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:01,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:55:01,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:01,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138759680] [2022-11-19 06:55:01,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138759680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:01,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850706347] [2022-11-19 06:55:01,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:01,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:01,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:01,774 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:01,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 06:55:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:01,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 06:55:01,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-19 06:55:01,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:55:01,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850706347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:01,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:55:01,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-19 06:55:01,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393536638] [2022-11-19 06:55:01,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:01,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:55:01,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:01,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:55:01,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:55:01,864 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 06:55:01,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:01,932 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2022-11-19 06:55:01,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:55:01,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2022-11-19 06:55:01,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:01,934 INFO L225 Difference]: With dead ends: 60 [2022-11-19 06:55:01,934 INFO L226 Difference]: Without dead ends: 58 [2022-11-19 06:55:01,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:55:01,935 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:01,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:55:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-19 06:55:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-19 06:55:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.173913043478261) internal successors, (54), 50 states have internal predecessors, (54), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:55:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2022-11-19 06:55:01,947 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 28 [2022-11-19 06:55:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:01,948 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2022-11-19 06:55:01,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 06:55:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2022-11-19 06:55:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 06:55:01,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:01,949 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:01,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:02,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-19 06:55:02,155 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:02,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:02,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1667640995, now seen corresponding path program 1 times [2022-11-19 06:55:02,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:02,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798522122] [2022-11-19 06:55:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:02,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 06:55:02,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:02,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798522122] [2022-11-19 06:55:02,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798522122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:55:02,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:55:02,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:55:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244976324] [2022-11-19 06:55:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:55:02,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:55:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:02,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:55:02,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:55:02,214 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 06:55:02,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:02,265 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2022-11-19 06:55:02,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:55:02,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2022-11-19 06:55:02,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:02,266 INFO L225 Difference]: With dead ends: 58 [2022-11-19 06:55:02,266 INFO L226 Difference]: Without dead ends: 57 [2022-11-19 06:55:02,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:55:02,267 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:02,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 39 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:55:02,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-19 06:55:02,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-19 06:55:02,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 49 states have internal predecessors, (53), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 06:55:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2022-11-19 06:55:02,279 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 34 [2022-11-19 06:55:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:02,279 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2022-11-19 06:55:02,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-19 06:55:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2022-11-19 06:55:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 06:55:02,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:02,281 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:02,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 06:55:02,281 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:02,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1706365493, now seen corresponding path program 1 times [2022-11-19 06:55:02,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:02,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748683325] [2022-11-19 06:55:02,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:55:02,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:02,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748683325] [2022-11-19 06:55:02,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748683325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:02,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523809357] [2022-11-19 06:55:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:02,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:02,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:02,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:02,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-19 06:55:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:02,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:55:02,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:55:02,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-19 06:55:02,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523809357] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:02,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268925602] [2022-11-19 06:55:02,618 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:55:02,618 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:02,619 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:02,619 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:02,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:02,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:02,689 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-19 06:55:02,690 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 26 treesize of output 42 [2022-11-19 06:55:02,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:02,734 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:02,735 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 [2022-11-19 06:55:02,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:02,901 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 33 treesize of output 35 [2022-11-19 06:55:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,110 INFO L321 Elim1Store]: treesize reduction 20, result has 42.9 percent of original size [2022-11-19 06:55:03,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 368 treesize of output 341 [2022-11-19 06:55:04,474 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 18 treesize of output 14 [2022-11-19 06:55:04,535 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 18 treesize of output 14 [2022-11-19 06:55:04,906 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 57 for LOIs [2022-11-19 06:55:04,919 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:06,721 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2938#(and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (not (<= |ULTIMATE.start_main_#t~post6#1| 2147483646)) (= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) (select (select |#memory_int| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4)))) (<= 1 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~post6#1| |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:06,721 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:06,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:06,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-19 06:55:06,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484157031] [2022-11-19 06:55:06,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:06,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 06:55:06,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:06,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 06:55:06,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2022-11-19 06:55:06,724 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-19 06:55:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:06,971 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2022-11-19 06:55:06,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 06:55:06,975 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 38 [2022-11-19 06:55:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:06,977 INFO L225 Difference]: With dead ends: 91 [2022-11-19 06:55:06,977 INFO L226 Difference]: Without dead ends: 90 [2022-11-19 06:55:06,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=205, Invalid=1055, Unknown=0, NotChecked=0, Total=1260 [2022-11-19 06:55:06,978 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 52 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:06,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 88 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:06,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-19 06:55:06,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2022-11-19 06:55:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 72 states have internal predecessors, (85), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 06:55:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 103 transitions. [2022-11-19 06:55:06,995 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 103 transitions. Word has length 38 [2022-11-19 06:55:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:06,995 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 103 transitions. [2022-11-19 06:55:06,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.533333333333333) internal successors, (53), 16 states have internal predecessors, (53), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-19 06:55:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 103 transitions. [2022-11-19 06:55:06,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-19 06:55:06,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:06,997 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:07,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:07,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 06:55:07,203 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:07,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:07,203 INFO L85 PathProgramCache]: Analyzing trace with hash -806080449, now seen corresponding path program 2 times [2022-11-19 06:55:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:07,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206766300] [2022-11-19 06:55:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-19 06:55:07,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:07,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206766300] [2022-11-19 06:55:07,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206766300] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:07,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302132450] [2022-11-19 06:55:07,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:55:07,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:07,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:07,325 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:07,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 06:55:07,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 06:55:07,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:55:07,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:55:07,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 06:55:07,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 06:55:07,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302132450] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:07,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [787695997] [2022-11-19 06:55:07,543 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-19 06:55:07,543 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:07,544 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:07,544 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:07,544 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:07,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:07,636 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2022-11-19 06:55:07,637 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 26 treesize of output 42 [2022-11-19 06:55:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:07,684 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:07,684 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 [2022-11-19 06:55:07,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:07,852 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 33 treesize of output 35 [2022-11-19 06:55:08,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:08,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:08,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:08,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:08,078 INFO L321 Elim1Store]: treesize reduction 20, result has 42.9 percent of original size [2022-11-19 06:55:08,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 368 treesize of output 341 [2022-11-19 06:55:09,266 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 18 treesize of output 14 [2022-11-19 06:55:09,335 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 18 treesize of output 14 [2022-11-19 06:55:10,016 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 57 for LOIs [2022-11-19 06:55:10,029 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:12,322 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3411#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (< 2147483645 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#a~0#1.base|) (+ |ULTIMATE.start_main_~#a~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4))) |ULTIMATE.start_main_#t~mem9#1|) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:12,322 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:12,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:12,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2022-11-19 06:55:12,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719536101] [2022-11-19 06:55:12,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:12,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 06:55:12,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 06:55:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=983, Unknown=0, NotChecked=0, Total=1122 [2022-11-19 06:55:12,324 INFO L87 Difference]: Start difference. First operand 83 states and 103 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 06:55:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:12,529 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2022-11-19 06:55:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 06:55:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-11-19 06:55:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:12,531 INFO L225 Difference]: With dead ends: 118 [2022-11-19 06:55:12,531 INFO L226 Difference]: Without dead ends: 83 [2022-11-19 06:55:12,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=194, Invalid=1366, Unknown=0, NotChecked=0, Total=1560 [2022-11-19 06:55:12,532 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 89 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:12,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 91 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-19 06:55:12,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-19 06:55:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 72 states have internal predecessors, (83), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-19 06:55:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2022-11-19 06:55:12,548 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 37 [2022-11-19 06:55:12,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:12,548 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2022-11-19 06:55:12,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 06:55:12,549 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2022-11-19 06:55:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-19 06:55:12,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:12,550 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:12,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:12,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-19 06:55:12,755 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:12,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1182535354, now seen corresponding path program 2 times [2022-11-19 06:55:12,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:12,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893108434] [2022-11-19 06:55:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:12,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 37 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-19 06:55:13,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:13,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893108434] [2022-11-19 06:55:13,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893108434] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:13,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378521331] [2022-11-19 06:55:13,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:55:13,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:13,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:13,012 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:13,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-19 06:55:13,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 06:55:13,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:55:13,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 06:55:13,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 06:55:13,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-19 06:55:13,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378521331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:13,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1430654819] [2022-11-19 06:55:13,248 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:55:13,248 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:13,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:13,248 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:13,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:13,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,338 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:13,338 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 [2022-11-19 06:55:13,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,356 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 26 treesize of output 34 [2022-11-19 06:55:13,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,535 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 33 treesize of output 35 [2022-11-19 06:55:13,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:13,728 INFO L321 Elim1Store]: treesize reduction 20, result has 42.9 percent of original size [2022-11-19 06:55:13,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 368 treesize of output 341 [2022-11-19 06:55:14,894 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 18 treesize of output 14 [2022-11-19 06:55:14,951 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 18 treesize of output 14 [2022-11-19 06:55:15,312 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 57 for LOIs [2022-11-19 06:55:15,325 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:17,122 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3967#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (not (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:17,122 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:17,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:17,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2022-11-19 06:55:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167155234] [2022-11-19 06:55:17,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:17,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 06:55:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:17,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 06:55:17,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=753, Unknown=0, NotChecked=0, Total=870 [2022-11-19 06:55:17,124 INFO L87 Difference]: Start difference. First operand 83 states and 101 transitions. Second operand has 16 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (11), 9 states have call predecessors, (11), 6 states have call successors, (11) [2022-11-19 06:55:17,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:17,524 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2022-11-19 06:55:17,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 06:55:17,525 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (11), 9 states have call predecessors, (11), 6 states have call successors, (11) Word has length 44 [2022-11-19 06:55:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:17,526 INFO L225 Difference]: With dead ends: 84 [2022-11-19 06:55:17,526 INFO L226 Difference]: Without dead ends: 81 [2022-11-19 06:55:17,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 109 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=304, Invalid=1502, Unknown=0, NotChecked=0, Total=1806 [2022-11-19 06:55:17,527 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 105 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:17,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 46 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:55:17,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-19 06:55:17,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 63. [2022-11-19 06:55:17,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 54 states have internal predecessors, (57), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 06:55:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2022-11-19 06:55:17,541 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 44 [2022-11-19 06:55:17,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:17,541 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2022-11-19 06:55:17,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.357142857142857) internal successors, (47), 15 states have internal predecessors, (47), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (11), 9 states have call predecessors, (11), 6 states have call successors, (11) [2022-11-19 06:55:17,541 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2022-11-19 06:55:17,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 06:55:17,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:17,543 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:17,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:17,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-19 06:55:17,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-19 06:55:17,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:17,749 INFO L85 PathProgramCache]: Analyzing trace with hash -680370676, now seen corresponding path program 2 times [2022-11-19 06:55:17,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:17,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653788766] [2022-11-19 06:55:17,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:17,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 6 proven. 72 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-19 06:55:18,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:18,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653788766] [2022-11-19 06:55:18,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653788766] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:55:18,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450664898] [2022-11-19 06:55:18,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:55:18,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:18,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:18,127 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:18,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-19 06:55:18,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-19 06:55:18,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:55:18,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-19 06:55:18,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-19 06:55:18,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-11-19 06:55:18,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450664898] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [551743300] [2022-11-19 06:55:18,709 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-19 06:55:18,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:18,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:18,709 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:18,709 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:18,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:18,774 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:18,775 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 [2022-11-19 06:55:18,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:18,785 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 26 treesize of output 34 [2022-11-19 06:55:18,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:18,924 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 33 treesize of output 35 [2022-11-19 06:55:19,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:19,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:19,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:19,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:19,127 INFO L321 Elim1Store]: treesize reduction 20, result has 42.9 percent of original size [2022-11-19 06:55:19,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 368 treesize of output 341 [2022-11-19 06:55:20,138 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 18 treesize of output 14 [2022-11-19 06:55:20,197 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 18 treesize of output 14 [2022-11-19 06:55:20,576 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 57 for LOIs [2022-11-19 06:55:20,589 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:55:22,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4546#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) 2147483647)) (<= 1 |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-19 06:55:22,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 06:55:22,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:55:22,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 21 [2022-11-19 06:55:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452107595] [2022-11-19 06:55:22,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:55:22,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-19 06:55:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:55:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-19 06:55:22,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1114, Unknown=0, NotChecked=0, Total=1260 [2022-11-19 06:55:22,648 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 22 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2022-11-19 06:55:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:23,380 INFO L93 Difference]: Finished difference Result 79 states and 90 transitions. [2022-11-19 06:55:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 06:55:23,380 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) Word has length 56 [2022-11-19 06:55:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:23,381 INFO L225 Difference]: With dead ends: 79 [2022-11-19 06:55:23,381 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:55:23,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 141 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=466, Invalid=2186, Unknown=0, NotChecked=0, Total=2652 [2022-11-19 06:55:23,383 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 243 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:23,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 47 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 06:55:23,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:55:23,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:55:23,384 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) [2022-11-19 06:55:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:55:23,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2022-11-19 06:55:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:23,385 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:55:23,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2022-11-19 06:55:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:55:23,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:55:23,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-19 06:55:23,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-19 06:55:23,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-19 06:55:23,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-19 06:55:23,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-19 06:55:23,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-19 06:55:23,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-19 06:55:23,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-19 06:55:23,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-19 06:55:23,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-19 06:55:23,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:23,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-19 06:55:23,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:55:25,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,212 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-19 06:55:25,212 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-19 06:55:25,212 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,213 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,213 INFO L899 garLoopResultBuilder]: For program point L23-2(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,213 INFO L895 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= (select |#length| 3) 12) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (= 25 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))) [2022-11-19 06:55:25,213 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2022-11-19 06:55:25,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-19 06:55:25,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:55:25,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-11-19 06:55:25,214 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-19 06:55:25,214 INFO L899 garLoopResultBuilder]: For program point L20-4(line 20) no Hoare annotation was computed. [2022-11-19 06:55:25,214 INFO L895 garLoopResultBuilder]: At program point L20-5(lines 20 24) the Hoare annotation is: (let ((.cse20 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 25 (select |#length| 2))) (.cse2 (not (= 3 |ULTIMATE.start_main_~#a~0#1.base|))) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|)) (.cse4 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#a~0#1.base|))) (.cse5 (= 2 (select |#length| 1))) (.cse6 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse7 (= (select |#valid| 3) 1)) (.cse8 (= (select |#valid| 1) 1)) (.cse9 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse10 (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1)) (.cse11 (= (select |#valid| 0) 0)) (.cse12 (= (select |#valid| 2) 1)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (= (select .cse20 0) 48)) (.cse15 (not (= (ite (< |ULTIMATE.start_main_~n~0#1| 100000) 1 0) 0))) (.cse16 (= (select .cse20 1) 0)) (.cse17 (< 0 |#StackHeapBarrier|)) (.cse18 (= |#NULL.base| 0)) (.cse19 (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))) (or (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~j~0#1| 9999) .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~i~0#1| 1) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and .cse0 .cse1 .cse2 .cse3 (< |ULTIMATE.start_main_~k~0#1| 10000) .cse4 .cse5 .cse6 .cse7 (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse8 (<= 2 |ULTIMATE.start_main_~i~0#1|) (< 0 |ULTIMATE.start_main_~k~0#1|) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (< |ULTIMATE.start_main_~j~0#1| 10000) .cse17 .cse18 .cse19)))) [2022-11-19 06:55:25,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-19 06:55:25,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,214 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:55:25,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-11-19 06:55:25,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-11-19 06:55:25,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-19 06:55:25,215 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-11-19 06:55:25,215 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (let ((.cse21 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 2147483648))) (.cse2 (= 25 (select |#length| 2))) (.cse3 (not (= 3 |ULTIMATE.start_main_~#a~0#1.base|))) (.cse4 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|)) (.cse5 (<= |ULTIMATE.start_main_~j~0#1| 9999)) (.cse6 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#a~0#1.base|))) (.cse7 (= 2 (select |#length| 1))) (.cse8 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse9 (= (select |#valid| 3) 1)) (.cse10 (= (select |#valid| 1) 1)) (.cse11 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse12 (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1)) (.cse13 (= (select |#valid| 0) 0)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= |#NULL.offset| 0)) (.cse16 (= (select .cse21 0) 48)) (.cse17 (not (= (ite (< |ULTIMATE.start_main_~n~0#1| 100000) 1 0) 0))) (.cse18 (= (select .cse21 1) 0)) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (= |ULTIMATE.start_main_~i~0#1| 1) .cse9 (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (<= |ULTIMATE.start_main_~i~0#1| 99998) .cse10 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))))) [2022-11-19 06:55:25,215 INFO L899 garLoopResultBuilder]: For program point L26-4(line 26) no Hoare annotation was computed. [2022-11-19 06:55:25,215 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2022-11-19 06:55:25,216 INFO L895 garLoopResultBuilder]: At program point L26-5(lines 26 27) the Hoare annotation is: (let ((.cse19 (select |#memory_int| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 25 (select |#length| 2))) (.cse2 (not (= 3 |ULTIMATE.start_main_~#a~0#1.base|))) (.cse3 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|)) (.cse4 (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#a~0#1.base|))) (.cse5 (= 2 (select |#length| 1))) (.cse6 (= (select |#valid| 3) 1)) (.cse7 (= (select |#valid| 1) 1)) (.cse8 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse9 (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1)) (.cse10 (= (select |#valid| 0) 0)) (.cse11 (= (select |#valid| 2) 1)) (.cse12 (= |#NULL.offset| 0)) (.cse13 (= (select .cse19 0) 48)) (.cse14 (not (= (ite (< |ULTIMATE.start_main_~n~0#1| 100000) 1 0) 0))) (.cse15 (= (select .cse19 1) 0)) (.cse16 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0)) (.cse18 (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~i~0#1| 1) .cse6 (< 0 |ULTIMATE.start_main_~j~0#1|) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (< |ULTIMATE.start_main_~j~0#1| 10000) .cse16 .cse17 .cse18) (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~j~0#1| 9999) .cse4 .cse5 (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse6 .cse7 (<= 2 |ULTIMATE.start_main_~i~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)))) [2022-11-19 06:55:25,216 INFO L895 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= 0 (+ |ULTIMATE.start_main_~j~0#1| 2147483648)) (= 25 (select |#length| 2)) (not (= 3 |ULTIMATE.start_main_~#a~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|) (= (* (mod |ULTIMATE.start_main_~n~0#1| 1073741824) 4) (select |#length| |ULTIMATE.start_main_~#a~0#1.base|)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~j~0#1| 2147483647) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (not (= (ite (< |ULTIMATE.start_main_~n~0#1| 100000) 1 0) 0)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648)))) [2022-11-19 06:55:25,216 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2022-11-19 06:55:25,216 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-11-19 06:55:25,216 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5 7) the Hoare annotation is: true [2022-11-19 06:55:25,216 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-11-19 06:55:25,219 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:55:25,221 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:55:25,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:55:25 BoogieIcfgContainer [2022-11-19 06:55:25,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:55:25,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:55:25,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:55:25,244 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:55:25,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:54:37" (3/4) ... [2022-11-19 06:55:25,248 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:55:25,253 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-19 06:55:25,257 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-19 06:55:25,257 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 06:55:25,257 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:55:25,258 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:55:25,297 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:55:25,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:55:25,303 INFO L158 Benchmark]: Toolchain (without parser) took 48162.49ms. Allocated memory was 142.6MB in the beginning and 465.6MB in the end (delta: 323.0MB). Free memory was 111.1MB in the beginning and 191.3MB in the end (delta: -80.1MB). Peak memory consumption was 243.5MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,303 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 44.8MB in the beginning and 44.8MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:55:25,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.54ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 118.2MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.95ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 116.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,305 INFO L158 Benchmark]: Boogie Preprocessor took 39.80ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 115.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,305 INFO L158 Benchmark]: RCFGBuilder took 425.79ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 101.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,306 INFO L158 Benchmark]: TraceAbstraction took 47271.25ms. Allocated memory was 142.6MB in the beginning and 465.6MB in the end (delta: 323.0MB). Free memory was 101.0MB in the beginning and 194.4MB in the end (delta: -93.4MB). Peak memory consumption was 229.8MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,307 INFO L158 Benchmark]: Witness Printer took 58.30ms. Allocated memory is still 465.6MB. Free memory was 194.4MB in the beginning and 191.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:55:25,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 44.8MB in the beginning and 44.8MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.54ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 118.2MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.95ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 116.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.80ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 115.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.79ms. Allocated memory is still 142.6MB. Free memory was 115.3MB in the beginning and 101.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 47271.25ms. Allocated memory was 142.6MB in the beginning and 465.6MB in the end (delta: 323.0MB). Free memory was 101.0MB in the beginning and 194.4MB in the end (delta: -93.4MB). Peak memory consumption was 229.8MB. Max. memory is 16.1GB. * Witness Printer took 58.30ms. Allocated memory is still 465.6MB. Free memory was 194.4MB in the beginning and 191.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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 2 procedures, 31 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 47.2s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1016 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1000 mSDsluCounter, 868 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 624 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1872 IncrementalHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 244 mSDtfsCounter, 1872 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1096 GetRequests, 725 SyntacticMatches, 24 SemanticMatches, 347 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4396 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=13, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 79 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 13 PreInvPairs, 34 NumberOfFragments, 845 HoareAnnotationTreeSize, 13 FomulaSimplifications, 621 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 6 FomulaSimplificationsInter, 4678 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 804 NumberOfCodeBlocks, 750 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1060 ConstructedInterpolants, 0 QuantifiedInterpolants, 3899 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1232 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 37 InterpolantComputations, 7 PerfectInterpolantSequences, 709/1014 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: OVERALL_TIME: 0.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 7, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.4s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 22, TOOLS_QUANTIFIERELIM_TIME: 0.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 8, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 102, DAG_COMPRESSION_RETAINED_NODES: 34, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((((((((((((((((((unknown-#length-unknown[3] == 12 && 25 == unknown-#length-unknown[2]) && !(3 == a)) && unknown-#StackHeapBarrier-unknown < a) && j <= 9999) && n % 1073741824 * 4 == unknown-#length-unknown[a]) && 2 == unknown-#length-unknown[1]) && 1 <= j) && i == 1) && \valid[3] == 1) && \valid[1] == 1) && a == 0) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !((if n < 100000 then 1 else 0) == 0)) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= n + 2147483648) || ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 25 == unknown-#length-unknown[2]) && !(3 == a)) && unknown-#StackHeapBarrier-unknown < a) && k < 10000) && n % 1073741824 * 4 == unknown-#length-unknown[a]) && 2 == unknown-#length-unknown[1]) && 1 <= j) && \valid[3] == 1) && i + j <= 2147483647) && \valid[1] == 1) && 2 <= i) && 0 < k) && a == 0) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !((if n < 100000 then 1 else 0) == 0)) && unknown-#memory_int-unknown[1][1] == 0) && j < 10000) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= n + 2147483648) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((((((((((((((((((((unknown-#length-unknown[3] == 12 && 25 == unknown-#length-unknown[2]) && !(3 == a)) && unknown-#StackHeapBarrier-unknown < a) && n % 1073741824 * 4 == unknown-#length-unknown[a]) && 2 == unknown-#length-unknown[1]) && i == 1) && \valid[3] == 1) && 0 < j) && \valid[1] == 1) && a == 0) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !((if n < 100000 then 1 else 0) == 0)) && unknown-#memory_int-unknown[1][1] == 0) && j < 10000) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= n + 2147483648) || (((((((((((((((((((((unknown-#length-unknown[3] == 12 && 25 == unknown-#length-unknown[2]) && !(3 == a)) && unknown-#StackHeapBarrier-unknown < a) && j <= 9999) && n % 1073741824 * 4 == unknown-#length-unknown[a]) && 2 == unknown-#length-unknown[1]) && 1 <= j) && \valid[3] == 1) && \valid[1] == 1) && 2 <= i) && a == 0) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !((if n < 100000 then 1 else 0) == 0)) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && 0 <= n + 2147483648) RESULT: Ultimate proved your program to be correct! [2022-11-19 06:55:25,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37bf7f0-032d-471a-82c3-3f2843f0ae18/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE