/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:51:51,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:51:51,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:51:51,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:51:51,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:51:51,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:51:51,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:51:51,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:51:51,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:51:51,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:51:51,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:51:51,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:51:51,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:51:51,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:51:51,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:51:51,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:51:51,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-07 15:51:51,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:51:51,441 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:51:51,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:51:51,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:51:51,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:51:51,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:51:51,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:51:51,447 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:51:51,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:51:51,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:51:51,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:51:51,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:51:51,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:51:51,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:51:51,450 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:51:51,451 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:51:51,451 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:51:51,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:51:51,451 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:51:51,452 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:51:51,452 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:51:51,452 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:51:51,452 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:51:51,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:51:51,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:51:51,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:51:51,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:51:51,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:51:51,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:51:51,454 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:51:51,454 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:51:51,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:51:51,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:51:51,455 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:51:51,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:51:51,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:51:51,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:51:51,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:51:51,928 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:51:51,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2021-10-07 15:51:52,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c6f5dccd/a8ff9ff794d9422a86003f2af7ed9ca1/FLAG47b0f91bd [2021-10-07 15:51:52,729 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:51:52,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2021-10-07 15:51:52,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c6f5dccd/a8ff9ff794d9422a86003f2af7ed9ca1/FLAG47b0f91bd [2021-10-07 15:51:53,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6c6f5dccd/a8ff9ff794d9422a86003f2af7ed9ca1 [2021-10-07 15:51:53,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:51:53,060 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:51:53,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:51:53,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:51:53,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:51:53,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11990d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53, skipping insertion in model container [2021-10-07 15:51:53,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:51:53,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:51:53,326 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3058,3071] [2021-10-07 15:51:53,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:51:53,347 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:51:53,382 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3058,3071] [2021-10-07 15:51:53,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:51:53,406 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:51:53,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53 WrapperNode [2021-10-07 15:51:53,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:51:53,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:51:53,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:51:53,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:51:53,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:51:53,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:51:53,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:51:53,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:51:53,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:51:53,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:51:53,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:51:53,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:51:53,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (1/1) ... [2021-10-07 15:51:53,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:51:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:51:53,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:51:53,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:51:53,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:51:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:51:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:51:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:51:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:51:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:51:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:51:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-07 15:51:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-07 15:51:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-10-07 15:51:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-10-07 15:51:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:51:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 15:51:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 15:51:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:51:53,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:51:53,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:51:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:51:53,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:51:53,654 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:51:54,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:51:54,561 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-07 15:51:54,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:51:54 BoogieIcfgContainer [2021-10-07 15:51:54,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:51:54,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:51:54,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:51:54,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:51:54,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:51:53" (1/3) ... [2021-10-07 15:51:54,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46501120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:51:54, skipping insertion in model container [2021-10-07 15:51:54,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:51:53" (2/3) ... [2021-10-07 15:51:54,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46501120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:51:54, skipping insertion in model container [2021-10-07 15:51:54,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:51:54" (3/3) ... [2021-10-07 15:51:54,575 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2021-10-07 15:51:54,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:51:54,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-10-07 15:51:54,582 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:51:54,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,643 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,643 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,643 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,644 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,644 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,644 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,647 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,648 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,649 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,650 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,650 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,650 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,650 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,651 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,652 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,652 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,652 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,653 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,654 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,655 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,656 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,656 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,656 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,656 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,657 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,657 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,657 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,657 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,657 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,658 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,659 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,659 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,659 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,659 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,660 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,660 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,660 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,661 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,661 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,661 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,661 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,662 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,662 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,662 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,662 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,662 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,663 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,663 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,663 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,663 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,664 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,664 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,664 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,664 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,665 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,665 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,665 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,665 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,665 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,666 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,666 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,667 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,667 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,667 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,667 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,667 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,668 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,668 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,668 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,668 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,668 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,669 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,669 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,669 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,669 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,670 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,670 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,670 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,670 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,670 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,671 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,671 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,671 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,671 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,675 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,676 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,679 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,679 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,679 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,680 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,680 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,680 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,682 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,683 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,685 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,686 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,686 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,686 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,686 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,686 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,689 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,689 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,689 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,690 WARN L313 ript$VariableManager]: TermVariabe thread5Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,690 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,690 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:51:54,701 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-10-07 15:51:54,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:51:54,768 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 15:51:54,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-07 15:51:54,792 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:51:54,805 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 208 transitions, 456 flow [2021-10-07 15:51:54,809 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 208 transitions, 456 flow [2021-10-07 15:51:54,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 208 transitions, 456 flow [2021-10-07 15:51:54,951 INFO L129 PetriNetUnfolder]: 7/203 cut-off events. [2021-10-07 15:51:54,953 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-07 15:51:54,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 203 events. 7/203 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2021-10-07 15:51:54,974 INFO L116 LiptonReduction]: Number of co-enabled transitions 7588 [2021-10-07 15:52:22,314 INFO L131 LiptonReduction]: Checked pairs total: 26073 [2021-10-07 15:52:22,315 INFO L133 LiptonReduction]: Total number of compositions: 201 [2021-10-07 15:52:22,326 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 78 transitions, 196 flow [2021-10-07 15:52:25,338 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 49763 states, 49741 states have (on average 5.353068896885869) internal successors, (266267), 49762 states have internal predecessors, (266267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 49763 states, 49741 states have (on average 5.353068896885869) internal successors, (266267), 49762 states have internal predecessors, (266267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:25,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-07 15:52:25,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:25,492 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-07 15:52:25,493 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:52:25,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash 776, now seen corresponding path program 1 times [2021-10-07 15:52:25,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:25,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512246203] [2021-10-07 15:52:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:52:25,524 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:25,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:25,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:52:25,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:52:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:52:25,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-07 15:52:25,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:25,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:25,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:25,642 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:25,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512246203] [2021-10-07 15:52:25,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512246203] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:25,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:25,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0, 0] imperfect sequences [] total 0 [2021-10-07 15:52:25,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046356629] [2021-10-07 15:52:25,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-07 15:52:25,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:25,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-07 15:52:25,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:52:25,835 INFO L87 Difference]: Start difference. First operand has 49763 states, 49741 states have (on average 5.353068896885869) internal successors, (266267), 49762 states have internal predecessors, (266267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:28,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:28,289 INFO L93 Difference]: Finished difference Result 49760 states and 235608 transitions. [2021-10-07 15:52:28,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-07 15:52:28,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-10-07 15:52:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:29,745 INFO L225 Difference]: With dead ends: 49760 [2021-10-07 15:52:29,748 INFO L226 Difference]: Without dead ends: 49760 [2021-10-07 15:52:29,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-07 15:52:30,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49760 states. [2021-10-07 15:52:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49760 to 49760. [2021-10-07 15:52:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49760 states, 49741 states have (on average 4.73669608572405) internal successors, (235608), 49759 states have internal predecessors, (235608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49760 states to 49760 states and 235608 transitions. [2021-10-07 15:52:33,972 INFO L78 Accepts]: Start accepts. Automaton has 49760 states and 235608 transitions. Word has length 1 [2021-10-07 15:52:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:33,973 INFO L470 AbstractCegarLoop]: Abstraction has 49760 states and 235608 transitions. [2021-10-07 15:52:33,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 49760 states and 235608 transitions. [2021-10-07 15:52:33,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:52:33,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:33,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:52:33,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:34,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:52:34,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:52:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:34,188 INFO L82 PathProgramCache]: Analyzing trace with hash 764033, now seen corresponding path program 1 times [2021-10-07 15:52:34,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:34,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130456999] [2021-10-07 15:52:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:52:34,190 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:34,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:34,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:52:34,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:52:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:52:34,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-07 15:52:34,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:34,982 INFO L354 Elim1Store]: treesize reduction 361, result has 13.0 percent of original size [2021-10-07 15:52:34,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 109 [2021-10-07 15:52:35,038 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-07 15:52:35,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 861 treesize of output 829 [2021-10-07 15:52:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:37,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:37,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:37,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130456999] [2021-10-07 15:52:37,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130456999] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:37,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:37,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:52:37,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474703809] [2021-10-07 15:52:37,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:52:37,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:37,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:52:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:52:37,982 INFO L87 Difference]: Start difference. First operand 49760 states and 235608 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:39,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:39,072 INFO L93 Difference]: Finished difference Result 48457 states and 229979 transitions. [2021-10-07 15:52:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:52:39,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:52:39,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:39,603 INFO L225 Difference]: With dead ends: 48457 [2021-10-07 15:52:39,604 INFO L226 Difference]: Without dead ends: 48457 [2021-10-07 15:52:39,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:52:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48457 states. [2021-10-07 15:52:42,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48457 to 48457. [2021-10-07 15:52:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48457 states, 48440 states have (on average 4.747708505367465) internal successors, (229979), 48456 states have internal predecessors, (229979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48457 states to 48457 states and 229979 transitions. [2021-10-07 15:52:43,398 INFO L78 Accepts]: Start accepts. Automaton has 48457 states and 229979 transitions. Word has length 3 [2021-10-07 15:52:43,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:52:43,398 INFO L470 AbstractCegarLoop]: Abstraction has 48457 states and 229979 transitions. [2021-10-07 15:52:43,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 48457 states and 229979 transitions. [2021-10-07 15:52:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 15:52:43,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:52:43,403 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 15:52:43,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:52:43,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:52:43,604 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:52:43,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:52:43,605 INFO L82 PathProgramCache]: Analyzing trace with hash 764035, now seen corresponding path program 1 times [2021-10-07 15:52:43,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:52:43,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358675663] [2021-10-07 15:52:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:52:43,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:52:43,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:52:43,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:52:43,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:52:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:52:43,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:52:43,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:52:44,072 INFO L354 Elim1Store]: treesize reduction 507, result has 13.0 percent of original size [2021-10-07 15:52:44,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 198 treesize of output 243 [2021-10-07 15:52:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:56,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:52:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:52:56,034 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:52:56,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358675663] [2021-10-07 15:52:56,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358675663] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:52:56,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:52:56,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:52:56,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735818086] [2021-10-07 15:52:56,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:52:56,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:52:56,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:52:56,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:52:56,037 INFO L87 Difference]: Start difference. First operand 48457 states and 229979 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:52:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:52:56,968 INFO L93 Difference]: Finished difference Result 47154 states and 224350 transitions. [2021-10-07 15:52:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:52:56,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-07 15:52:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:52:57,373 INFO L225 Difference]: With dead ends: 47154 [2021-10-07 15:52:57,373 INFO L226 Difference]: Without dead ends: 47154 [2021-10-07 15:52:57,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:52:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47154 states. [2021-10-07 15:52:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47154 to 47154. [2021-10-07 15:52:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47154 states, 47139 states have (on average 4.759328793567959) internal successors, (224350), 47153 states have internal predecessors, (224350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47154 states to 47154 states and 224350 transitions. [2021-10-07 15:53:00,347 INFO L78 Accepts]: Start accepts. Automaton has 47154 states and 224350 transitions. Word has length 3 [2021-10-07 15:53:00,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:00,348 INFO L470 AbstractCegarLoop]: Abstraction has 47154 states and 224350 transitions. [2021-10-07 15:53:00,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 47154 states and 224350 transitions. [2021-10-07 15:53:00,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:53:00,354 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:00,354 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:53:00,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:00,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:00,567 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:00,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:00,569 INFO L82 PathProgramCache]: Analyzing trace with hash 734253897, now seen corresponding path program 1 times [2021-10-07 15:53:00,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:00,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847628383] [2021-10-07 15:53:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:00,570 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:00,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:00,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:00,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:53:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:00,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:53:00,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:00,990 INFO L354 Elim1Store]: treesize reduction 355, result has 14.5 percent of original size [2021-10-07 15:53:00,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 90 [2021-10-07 15:53:00,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 151 [2021-10-07 15:53:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:02,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:02,471 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:02,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847628383] [2021-10-07 15:53:02,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847628383] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:02,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:02,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:53:02,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106094005] [2021-10-07 15:53:02,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:53:02,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:02,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:53:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:02,474 INFO L87 Difference]: Start difference. First operand 47154 states and 224350 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:03,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:03,518 INFO L93 Difference]: Finished difference Result 46896 states and 223481 transitions. [2021-10-07 15:53:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:03,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:53:03,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:04,318 INFO L225 Difference]: With dead ends: 46896 [2021-10-07 15:53:04,319 INFO L226 Difference]: Without dead ends: 46896 [2021-10-07 15:53:04,325 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:04,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46896 states. [2021-10-07 15:53:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46896 to 46896. [2021-10-07 15:53:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46896 states, 46883 states have (on average 4.7667811360194525) internal successors, (223481), 46895 states have internal predecessors, (223481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46896 states to 46896 states and 223481 transitions. [2021-10-07 15:53:06,892 INFO L78 Accepts]: Start accepts. Automaton has 46896 states and 223481 transitions. Word has length 5 [2021-10-07 15:53:06,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:06,893 INFO L470 AbstractCegarLoop]: Abstraction has 46896 states and 223481 transitions. [2021-10-07 15:53:06,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 46896 states and 223481 transitions. [2021-10-07 15:53:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 15:53:06,894 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:06,894 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 15:53:06,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:07,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:07,101 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:07,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:07,102 INFO L82 PathProgramCache]: Analyzing trace with hash 734253899, now seen corresponding path program 1 times [2021-10-07 15:53:07,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:07,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043746440] [2021-10-07 15:53:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:07,104 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:07,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:07,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:07,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:53:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:07,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:53:07,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:07,477 INFO L354 Elim1Store]: treesize reduction 499, result has 13.2 percent of original size [2021-10-07 15:53:07,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 172 treesize of output 217 [2021-10-07 15:53:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:19,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:19,451 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:19,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043746440] [2021-10-07 15:53:19,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043746440] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:19,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:19,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:53:19,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5507366] [2021-10-07 15:53:19,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:53:19,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:19,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:53:19,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:19,454 INFO L87 Difference]: Start difference. First operand 46896 states and 223481 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:20,351 INFO L93 Difference]: Finished difference Result 46638 states and 222612 transitions. [2021-10-07 15:53:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:20,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 15:53:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:20,820 INFO L225 Difference]: With dead ends: 46638 [2021-10-07 15:53:20,821 INFO L226 Difference]: Without dead ends: 46638 [2021-10-07 15:53:20,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46638 states. [2021-10-07 15:53:22,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46638 to 46638. [2021-10-07 15:53:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46638 states, 46627 states have (on average 4.774315310871383) internal successors, (222612), 46637 states have internal predecessors, (222612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46638 states to 46638 states and 222612 transitions. [2021-10-07 15:53:23,700 INFO L78 Accepts]: Start accepts. Automaton has 46638 states and 222612 transitions. Word has length 5 [2021-10-07 15:53:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:23,701 INFO L470 AbstractCegarLoop]: Abstraction has 46638 states and 222612 transitions. [2021-10-07 15:53:23,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 46638 states and 222612 transitions. [2021-10-07 15:53:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:53:23,702 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:23,702 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:23,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-07 15:53:23,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:23,916 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:23,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:23,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1243376839, now seen corresponding path program 1 times [2021-10-07 15:53:23,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:23,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269829550] [2021-10-07 15:53:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:23,919 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:23,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:23,920 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:23,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:53:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:24,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:53:24,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:24,335 INFO L354 Elim1Store]: treesize reduction 349, result has 15.9 percent of original size [2021-10-07 15:53:24,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 71 [2021-10-07 15:53:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:24,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:24,536 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:24,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269829550] [2021-10-07 15:53:24,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269829550] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:24,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:24,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:53:24,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014299633] [2021-10-07 15:53:24,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:53:24,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:24,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:53:24,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:24,539 INFO L87 Difference]: Start difference. First operand 46638 states and 222612 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:25,063 INFO L93 Difference]: Finished difference Result 46350 states and 221628 transitions. [2021-10-07 15:53:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:25,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:53:25,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:26,128 INFO L225 Difference]: With dead ends: 46350 [2021-10-07 15:53:26,128 INFO L226 Difference]: Without dead ends: 46350 [2021-10-07 15:53:26,129 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:26,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46350 states. [2021-10-07 15:53:28,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46350 to 46350. [2021-10-07 15:53:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46350 states, 46341 states have (on average 4.78254677283615) internal successors, (221628), 46349 states have internal predecessors, (221628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46350 states to 46350 states and 221628 transitions. [2021-10-07 15:53:28,638 INFO L78 Accepts]: Start accepts. Automaton has 46350 states and 221628 transitions. Word has length 7 [2021-10-07 15:53:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:28,638 INFO L470 AbstractCegarLoop]: Abstraction has 46350 states and 221628 transitions. [2021-10-07 15:53:28,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 46350 states and 221628 transitions. [2021-10-07 15:53:28,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 15:53:28,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:28,639 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:28,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:28,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:28,847 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:28,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:28,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1243376840, now seen corresponding path program 1 times [2021-10-07 15:53:28,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:28,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078996449] [2021-10-07 15:53:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:28,850 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:28,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:28,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:28,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:53:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:28,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:53:28,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:29,231 INFO L354 Elim1Store]: treesize reduction 499, result has 13.2 percent of original size [2021-10-07 15:53:29,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 27 treesize of output 81 [2021-10-07 15:53:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:29,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:29,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:29,981 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:29,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078996449] [2021-10-07 15:53:29,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078996449] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:29,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:29,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:53:29,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889334341] [2021-10-07 15:53:29,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:53:29,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:53:29,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:53:29,984 INFO L87 Difference]: Start difference. First operand 46350 states and 221628 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:31,023 INFO L93 Difference]: Finished difference Result 46062 states and 220644 transitions. [2021-10-07 15:53:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:31,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-07 15:53:31,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:31,848 INFO L225 Difference]: With dead ends: 46062 [2021-10-07 15:53:31,851 INFO L226 Difference]: Without dead ends: 46062 [2021-10-07 15:53:31,852 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:53:32,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46062 states. [2021-10-07 15:53:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46062 to 46062. [2021-10-07 15:53:33,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46062 states, 46055 states have (on average 4.790880469004451) internal successors, (220644), 46061 states have internal predecessors, (220644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46062 states to 46062 states and 220644 transitions. [2021-10-07 15:53:34,377 INFO L78 Accepts]: Start accepts. Automaton has 46062 states and 220644 transitions. Word has length 7 [2021-10-07 15:53:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:34,378 INFO L470 AbstractCegarLoop]: Abstraction has 46062 states and 220644 transitions. [2021-10-07 15:53:34,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 46062 states and 220644 transitions. [2021-10-07 15:53:34,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:53:34,380 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:34,380 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:34,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-07 15:53:34,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:34,595 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:34,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:34,596 INFO L82 PathProgramCache]: Analyzing trace with hash 884250326, now seen corresponding path program 1 times [2021-10-07 15:53:34,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:34,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314688193] [2021-10-07 15:53:34,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:34,597 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:34,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:34,598 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:34,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-07 15:53:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:34,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:53:34,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:35,046 INFO L354 Elim1Store]: treesize reduction 499, result has 13.2 percent of original size [2021-10-07 15:53:35,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 27 treesize of output 81 [2021-10-07 15:53:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:35,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:35,841 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:35,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314688193] [2021-10-07 15:53:35,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314688193] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:35,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:35,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:53:35,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221974980] [2021-10-07 15:53:35,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:53:35,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:53:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:53:35,843 INFO L87 Difference]: Start difference. First operand 46062 states and 220644 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:36,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:36,799 INFO L93 Difference]: Finished difference Result 44544 states and 214045 transitions. [2021-10-07 15:53:36,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:36,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-07 15:53:36,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:37,103 INFO L225 Difference]: With dead ends: 44544 [2021-10-07 15:53:37,103 INFO L226 Difference]: Without dead ends: 44544 [2021-10-07 15:53:37,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:53:37,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44544 states. [2021-10-07 15:53:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44544 to 44544. [2021-10-07 15:53:39,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44544 states, 44539 states have (on average 4.805788185635062) internal successors, (214045), 44543 states have internal predecessors, (214045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44544 states to 44544 states and 214045 transitions. [2021-10-07 15:53:39,467 INFO L78 Accepts]: Start accepts. Automaton has 44544 states and 214045 transitions. Word has length 9 [2021-10-07 15:53:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:39,468 INFO L470 AbstractCegarLoop]: Abstraction has 44544 states and 214045 transitions. [2021-10-07 15:53:39,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 44544 states and 214045 transitions. [2021-10-07 15:53:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-07 15:53:39,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:39,469 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:39,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:39,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:39,678 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:39,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:39,679 INFO L82 PathProgramCache]: Analyzing trace with hash 884250327, now seen corresponding path program 1 times [2021-10-07 15:53:39,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:39,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213582716] [2021-10-07 15:53:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:39,681 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:39,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:39,682 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:39,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-07 15:53:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:39,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-07 15:53:39,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:40,712 INFO L354 Elim1Store]: treesize reduction 349, result has 15.9 percent of original size [2021-10-07 15:53:40,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 24 treesize of output 71 [2021-10-07 15:53:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:40,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:40,968 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:40,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213582716] [2021-10-07 15:53:40,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213582716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:40,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:40,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:53:40,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13924081] [2021-10-07 15:53:40,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:53:40,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:40,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:53:40,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:40,970 INFO L87 Difference]: Start difference. First operand 44544 states and 214045 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:41,493 INFO L93 Difference]: Finished difference Result 43026 states and 207446 transitions. [2021-10-07 15:53:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:41,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-07 15:53:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:42,362 INFO L225 Difference]: With dead ends: 43026 [2021-10-07 15:53:42,362 INFO L226 Difference]: Without dead ends: 43026 [2021-10-07 15:53:42,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:53:42,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43026 states. [2021-10-07 15:53:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43026 to 43026. [2021-10-07 15:53:44,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43026 states, 43023 states have (on average 4.8217465076819375) internal successors, (207446), 43025 states have internal predecessors, (207446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43026 states to 43026 states and 207446 transitions. [2021-10-07 15:53:45,291 INFO L78 Accepts]: Start accepts. Automaton has 43026 states and 207446 transitions. Word has length 9 [2021-10-07 15:53:45,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:45,294 INFO L470 AbstractCegarLoop]: Abstraction has 43026 states and 207446 transitions. [2021-10-07 15:53:45,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:45,295 INFO L276 IsEmpty]: Start isEmpty. Operand 43026 states and 207446 transitions. [2021-10-07 15:53:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 15:53:45,314 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:45,314 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:45,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-10-07 15:53:45,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:45,514 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:45,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:45,516 INFO L82 PathProgramCache]: Analyzing trace with hash -638944834, now seen corresponding path program 1 times [2021-10-07 15:53:45,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:45,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249164435] [2021-10-07 15:53:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:45,517 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:45,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:45,518 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:45,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-07 15:53:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:45,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:53:45,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:46,127 INFO L354 Elim1Store]: treesize reduction 355, result has 14.5 percent of original size [2021-10-07 15:53:46,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 85 [2021-10-07 15:53:46,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 148 [2021-10-07 15:53:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:47,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:47,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:47,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249164435] [2021-10-07 15:53:47,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249164435] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:47,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:47,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-07 15:53:47,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518833579] [2021-10-07 15:53:47,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:53:47,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:53:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:53:47,730 INFO L87 Difference]: Start difference. First operand 43026 states and 207446 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:48,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:48,675 INFO L93 Difference]: Finished difference Result 33954 states and 160358 transitions. [2021-10-07 15:53:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:48,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 15:53:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:48,935 INFO L225 Difference]: With dead ends: 33954 [2021-10-07 15:53:48,935 INFO L226 Difference]: Without dead ends: 33954 [2021-10-07 15:53:48,935 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 292.5ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:53:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33954 states. [2021-10-07 15:53:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33954 to 33954. [2021-10-07 15:53:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33954 states, 33952 states have (on average 4.723079641847314) internal successors, (160358), 33953 states have internal predecessors, (160358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33954 states to 33954 states and 160358 transitions. [2021-10-07 15:53:50,349 INFO L78 Accepts]: Start accepts. Automaton has 33954 states and 160358 transitions. Word has length 11 [2021-10-07 15:53:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:50,350 INFO L470 AbstractCegarLoop]: Abstraction has 33954 states and 160358 transitions. [2021-10-07 15:53:50,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 33954 states and 160358 transitions. [2021-10-07 15:53:50,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 15:53:50,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:50,351 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:50,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-07 15:53:50,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:50,552 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:50,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:50,553 INFO L82 PathProgramCache]: Analyzing trace with hash -638944833, now seen corresponding path program 1 times [2021-10-07 15:53:50,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:50,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082078028] [2021-10-07 15:53:50,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:50,555 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:50,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:50,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:50,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-07 15:53:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:50,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-07 15:53:50,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:51,412 INFO L354 Elim1Store]: treesize reduction 499, result has 13.2 percent of original size [2021-10-07 15:53:51,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 27 treesize of output 81 [2021-10-07 15:53:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:52,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:52,191 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:52,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082078028] [2021-10-07 15:53:52,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082078028] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:52,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:52,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-07 15:53:52,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109096009] [2021-10-07 15:53:52,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:53:52,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:53:52,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:53:52,193 INFO L87 Difference]: Start difference. First operand 33954 states and 160358 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:52,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:52,540 INFO L93 Difference]: Finished difference Result 24882 states and 113270 transitions. [2021-10-07 15:53:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:53:52,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 15:53:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:52,656 INFO L225 Difference]: With dead ends: 24882 [2021-10-07 15:53:52,656 INFO L226 Difference]: Without dead ends: 24882 [2021-10-07 15:53:52,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 136.3ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:53:52,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24882 states. [2021-10-07 15:53:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24882 to 24882. [2021-10-07 15:53:53,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24882 states, 24881 states have (on average 4.552469756038745) internal successors, (113270), 24881 states have internal predecessors, (113270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:53,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24882 states to 24882 states and 113270 transitions. [2021-10-07 15:53:53,815 INFO L78 Accepts]: Start accepts. Automaton has 24882 states and 113270 transitions. Word has length 11 [2021-10-07 15:53:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:53,816 INFO L470 AbstractCegarLoop]: Abstraction has 24882 states and 113270 transitions. [2021-10-07 15:53:53,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:53,816 INFO L276 IsEmpty]: Start isEmpty. Operand 24882 states and 113270 transitions. [2021-10-07 15:53:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:53:54,317 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:54,317 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:54,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-07 15:53:54,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:54,530 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:54,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1536190807, now seen corresponding path program 1 times [2021-10-07 15:53:54,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:54,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266322822] [2021-10-07 15:53:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:53:54,533 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:54,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:54,534 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:54,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-07 15:53:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:53:54,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:53:54,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:54,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:53:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:55,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:53:55,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266322822] [2021-10-07 15:53:55,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266322822] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:53:55,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:53:55,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-07 15:53:55,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151931551] [2021-10-07 15:53:55,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:53:55,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:53:55,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:53:55,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:53:55,020 INFO L87 Difference]: Start difference. First operand 24882 states and 113270 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:53:56,492 INFO L93 Difference]: Finished difference Result 34348 states and 155806 transitions. [2021-10-07 15:53:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:53:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:53:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:53:56,720 INFO L225 Difference]: With dead ends: 34348 [2021-10-07 15:53:56,721 INFO L226 Difference]: Without dead ends: 28522 [2021-10-07 15:53:56,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 289.3ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-07 15:53:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28522 states. [2021-10-07 15:53:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28522 to 26746. [2021-10-07 15:53:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26746 states, 26745 states have (on average 4.539054028790428) internal successors, (121397), 26745 states have internal predecessors, (121397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26746 states to 26746 states and 121397 transitions. [2021-10-07 15:53:58,934 INFO L78 Accepts]: Start accepts. Automaton has 26746 states and 121397 transitions. Word has length 47 [2021-10-07 15:53:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:53:58,935 INFO L470 AbstractCegarLoop]: Abstraction has 26746 states and 121397 transitions. [2021-10-07 15:53:58,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:53:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 26746 states and 121397 transitions. [2021-10-07 15:53:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:53:59,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:53:59,060 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:53:59,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-10-07 15:53:59,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:53:59,277 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:53:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:53:59,278 INFO L82 PathProgramCache]: Analyzing trace with hash 17900705, now seen corresponding path program 2 times [2021-10-07 15:53:59,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:53:59,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628172683] [2021-10-07 15:53:59,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:53:59,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:53:59,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:53:59,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:53:59,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-07 15:53:59,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:53:59,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:53:59,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-07 15:53:59,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:53:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:53:59,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:54:01,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:54:01,022 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:54:01,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628172683] [2021-10-07 15:54:01,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628172683] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:54:01,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:54:01,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-10-07 15:54:01,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247466196] [2021-10-07 15:54:01,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-07 15:54:01,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:54:01,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-07 15:54:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-10-07 15:54:01,025 INFO L87 Difference]: Start difference. First operand 26746 states and 121397 transitions. Second operand has 27 states, 27 states have (on average 2.925925925925926) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:56:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:56:59,341 INFO L93 Difference]: Finished difference Result 93426 states and 373059 transitions. [2021-10-07 15:56:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2021-10-07 15:56:59,343 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.925925925925926) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:56:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:00,075 INFO L225 Difference]: With dead ends: 93426 [2021-10-07 15:57:00,076 INFO L226 Difference]: Without dead ends: 78912 [2021-10-07 15:57:00,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24624 ImplicationChecksByTransitivity, 123886.6ms TimeCoverageRelationStatistics Valid=6827, Invalid=53443, Unknown=0, NotChecked=0, Total=60270 [2021-10-07 15:57:00,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78912 states. [2021-10-07 15:57:02,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78912 to 29212. [2021-10-07 15:57:02,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29212 states, 29211 states have (on average 4.329636095991236) internal successors, (126473), 29211 states have internal predecessors, (126473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:02,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29212 states to 29212 states and 126473 transitions. [2021-10-07 15:57:02,969 INFO L78 Accepts]: Start accepts. Automaton has 29212 states and 126473 transitions. Word has length 47 [2021-10-07 15:57:02,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:02,969 INFO L470 AbstractCegarLoop]: Abstraction has 29212 states and 126473 transitions. [2021-10-07 15:57:02,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.925925925925926) internal successors, (79), 26 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 29212 states and 126473 transitions. [2021-10-07 15:57:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:03,069 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:03,069 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:03,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-07 15:57:03,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:03,270 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:03,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1687690081, now seen corresponding path program 3 times [2021-10-07 15:57:03,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:03,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385628410] [2021-10-07 15:57:03,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:57:03,273 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:03,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:03,274 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:03,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-07 15:57:03,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:57:03,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:03,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:57:03,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:03,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:04,184 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:04,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385628410] [2021-10-07 15:57:04,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385628410] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:04,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:04,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-07 15:57:04,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698003137] [2021-10-07 15:57:04,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:57:04,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:04,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:57:04,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:57:04,189 INFO L87 Difference]: Start difference. First operand 29212 states and 126473 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:04,956 INFO L93 Difference]: Finished difference Result 46275 states and 198651 transitions. [2021-10-07 15:57:04,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:57:04,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:04,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:05,118 INFO L225 Difference]: With dead ends: 46275 [2021-10-07 15:57:05,119 INFO L226 Difference]: Without dead ends: 30140 [2021-10-07 15:57:05,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 26.2ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:57:05,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30140 states. [2021-10-07 15:57:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30140 to 30140. [2021-10-07 15:57:06,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30140 states, 30139 states have (on average 4.221473837884469) internal successors, (127231), 30139 states have internal predecessors, (127231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30140 states to 30140 states and 127231 transitions. [2021-10-07 15:57:06,427 INFO L78 Accepts]: Start accepts. Automaton has 30140 states and 127231 transitions. Word has length 47 [2021-10-07 15:57:06,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:06,427 INFO L470 AbstractCegarLoop]: Abstraction has 30140 states and 127231 transitions. [2021-10-07 15:57:06,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 30140 states and 127231 transitions. [2021-10-07 15:57:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:07,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:07,031 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:07,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-07 15:57:07,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:07,256 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:07,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:07,257 INFO L82 PathProgramCache]: Analyzing trace with hash 827924503, now seen corresponding path program 4 times [2021-10-07 15:57:07,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:07,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050136424] [2021-10-07 15:57:07,260 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:57:07,260 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:07,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:07,261 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:07,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-07 15:57:07,484 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:57:07,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:07,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 15:57:07,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:07,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:07,899 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:07,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050136424] [2021-10-07 15:57:07,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050136424] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:07,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:07,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-07 15:57:07,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138925622] [2021-10-07 15:57:07,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:57:07,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:07,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:57:07,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:57:07,901 INFO L87 Difference]: Start difference. First operand 30140 states and 127231 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:09,468 INFO L93 Difference]: Finished difference Result 27100 states and 107335 transitions. [2021-10-07 15:57:09,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:57:09,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:09,579 INFO L225 Difference]: With dead ends: 27100 [2021-10-07 15:57:09,579 INFO L226 Difference]: Without dead ends: 27100 [2021-10-07 15:57:09,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 444.5ms TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:57:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27100 states. [2021-10-07 15:57:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27100 to 25056. [2021-10-07 15:57:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25056 states, 25055 states have (on average 3.9668728796647375) internal successors, (99390), 25055 states have internal predecessors, (99390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:10,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25056 states to 25056 states and 99390 transitions. [2021-10-07 15:57:10,702 INFO L78 Accepts]: Start accepts. Automaton has 25056 states and 99390 transitions. Word has length 47 [2021-10-07 15:57:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:10,703 INFO L470 AbstractCegarLoop]: Abstraction has 25056 states and 99390 transitions. [2021-10-07 15:57:10,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:10,703 INFO L276 IsEmpty]: Start isEmpty. Operand 25056 states and 99390 transitions. [2021-10-07 15:57:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:10,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:10,794 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:10,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:11,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:11,008 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:11,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:11,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1198391353, now seen corresponding path program 5 times [2021-10-07 15:57:11,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:11,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044421168] [2021-10-07 15:57:11,011 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:57:11,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:11,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:11,012 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:11,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-07 15:57:11,245 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:57:11,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:11,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 15:57:11,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:11,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:12,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:12,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044421168] [2021-10-07 15:57:12,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044421168] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:12,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:12,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-07 15:57:12,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470322778] [2021-10-07 15:57:12,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-07 15:57:12,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:12,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-07 15:57:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:57:12,184 INFO L87 Difference]: Start difference. First operand 25056 states and 99390 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:15,072 INFO L93 Difference]: Finished difference Result 26748 states and 101854 transitions. [2021-10-07 15:57:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:57:15,073 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:15,164 INFO L225 Difference]: With dead ends: 26748 [2021-10-07 15:57:15,164 INFO L226 Difference]: Without dead ends: 22718 [2021-10-07 15:57:15,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 977.9ms TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2021-10-07 15:57:15,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22718 states. [2021-10-07 15:57:15,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22718 to 22028. [2021-10-07 15:57:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22028 states, 22027 states have (on average 3.878194942570482) internal successors, (85425), 22027 states have internal predecessors, (85425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22028 states to 22028 states and 85425 transitions. [2021-10-07 15:57:16,003 INFO L78 Accepts]: Start accepts. Automaton has 22028 states and 85425 transitions. Word has length 47 [2021-10-07 15:57:16,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:16,003 INFO L470 AbstractCegarLoop]: Abstraction has 22028 states and 85425 transitions. [2021-10-07 15:57:16,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:16,003 INFO L276 IsEmpty]: Start isEmpty. Operand 22028 states and 85425 transitions. [2021-10-07 15:57:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:16,058 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:16,058 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:16,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:16,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:16,262 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:16,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:16,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1373125299, now seen corresponding path program 6 times [2021-10-07 15:57:16,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:16,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859854657] [2021-10-07 15:57:16,264 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:57:16,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:16,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:16,266 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:16,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-07 15:57:16,526 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:57:16,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:16,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:57:16,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:16,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:16,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:17,147 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:17,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859854657] [2021-10-07 15:57:17,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859854657] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:17,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:17,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-07 15:57:17,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101732973] [2021-10-07 15:57:17,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-07 15:57:17,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:17,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-07 15:57:17,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:57:17,150 INFO L87 Difference]: Start difference. First operand 22028 states and 85425 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:18,951 INFO L93 Difference]: Finished difference Result 22952 states and 88104 transitions. [2021-10-07 15:57:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:57:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:19,040 INFO L225 Difference]: With dead ends: 22952 [2021-10-07 15:57:19,041 INFO L226 Difference]: Without dead ends: 21536 [2021-10-07 15:57:19,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 671.6ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-10-07 15:57:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21536 states. [2021-10-07 15:57:19,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21536 to 21428. [2021-10-07 15:57:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21428 states, 21427 states have (on average 3.8970924534465863) internal successors, (83503), 21427 states have internal predecessors, (83503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21428 states to 21428 states and 83503 transitions. [2021-10-07 15:57:19,950 INFO L78 Accepts]: Start accepts. Automaton has 21428 states and 83503 transitions. Word has length 47 [2021-10-07 15:57:19,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:19,951 INFO L470 AbstractCegarLoop]: Abstraction has 21428 states and 83503 transitions. [2021-10-07 15:57:19,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 14 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:19,951 INFO L276 IsEmpty]: Start isEmpty. Operand 21428 states and 83503 transitions. [2021-10-07 15:57:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:20,006 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:20,007 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:20,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:20,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:20,221 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:20,222 INFO L82 PathProgramCache]: Analyzing trace with hash -18456889, now seen corresponding path program 7 times [2021-10-07 15:57:20,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:20,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310357985] [2021-10-07 15:57:20,223 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:57:20,223 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:20,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:20,224 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:20,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-07 15:57:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:57:20,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:57:20,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:20,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:20,837 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:20,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310357985] [2021-10-07 15:57:20,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310357985] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:20,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:20,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-07 15:57:20,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075524669] [2021-10-07 15:57:20,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:57:20,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:20,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:57:20,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:57:20,839 INFO L87 Difference]: Start difference. First operand 21428 states and 83503 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:21,858 INFO L93 Difference]: Finished difference Result 18356 states and 68692 transitions. [2021-10-07 15:57:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:57:21,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:21,917 INFO L225 Difference]: With dead ends: 18356 [2021-10-07 15:57:21,918 INFO L226 Difference]: Without dead ends: 16086 [2021-10-07 15:57:21,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 266.8ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-07 15:57:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16086 states. [2021-10-07 15:57:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16086 to 15774. [2021-10-07 15:57:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15774 states, 15773 states have (on average 3.827616813542129) internal successors, (60373), 15773 states have internal predecessors, (60373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15774 states to 15774 states and 60373 transitions. [2021-10-07 15:57:22,625 INFO L78 Accepts]: Start accepts. Automaton has 15774 states and 60373 transitions. Word has length 47 [2021-10-07 15:57:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:22,625 INFO L470 AbstractCegarLoop]: Abstraction has 15774 states and 60373 transitions. [2021-10-07 15:57:22,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15774 states and 60373 transitions. [2021-10-07 15:57:22,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:22,666 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:22,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:22,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-10-07 15:57:22,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:22,867 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:22,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:22,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1375004725, now seen corresponding path program 8 times [2021-10-07 15:57:22,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:22,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349082899] [2021-10-07 15:57:22,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:57:22,870 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:22,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:22,873 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:22,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-07 15:57:23,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:57:23,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:23,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:57:23,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:23,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:23,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:23,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:23,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349082899] [2021-10-07 15:57:23,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349082899] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:23,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:23,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:57:23,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106683049] [2021-10-07 15:57:23,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:57:23,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:23,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:57:23,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:57:23,731 INFO L87 Difference]: Start difference. First operand 15774 states and 60373 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:29,358 INFO L93 Difference]: Finished difference Result 21488 states and 82778 transitions. [2021-10-07 15:57:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-07 15:57:29,360 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:29,465 INFO L225 Difference]: With dead ends: 21488 [2021-10-07 15:57:29,466 INFO L226 Difference]: Without dead ends: 21488 [2021-10-07 15:57:29,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 1764.2ms TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2021-10-07 15:57:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21488 states. [2021-10-07 15:57:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21488 to 16546. [2021-10-07 15:57:29,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16546 states, 16545 states have (on average 3.819885161680266) internal successors, (63200), 16545 states have internal predecessors, (63200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16546 states to 16546 states and 63200 transitions. [2021-10-07 15:57:29,935 INFO L78 Accepts]: Start accepts. Automaton has 16546 states and 63200 transitions. Word has length 47 [2021-10-07 15:57:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:29,936 INFO L470 AbstractCegarLoop]: Abstraction has 16546 states and 63200 transitions. [2021-10-07 15:57:29,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 16546 states and 63200 transitions. [2021-10-07 15:57:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:29,977 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:29,977 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:29,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:30,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:30,178 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:30,179 INFO L82 PathProgramCache]: Analyzing trace with hash 250483629, now seen corresponding path program 9 times [2021-10-07 15:57:30,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:30,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762367012] [2021-10-07 15:57:30,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:57:30,180 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:30,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:30,181 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:30,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-07 15:57:30,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:57:30,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:30,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:57:30,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:30,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:31,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:31,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762367012] [2021-10-07 15:57:31,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762367012] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:31,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:31,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:57:31,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305102302] [2021-10-07 15:57:31,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:57:31,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:31,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:57:31,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:57:31,508 INFO L87 Difference]: Start difference. First operand 16546 states and 63200 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:42,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:57:42,968 INFO L93 Difference]: Finished difference Result 27398 states and 105550 transitions. [2021-10-07 15:57:42,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-07 15:57:42,969 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:57:42,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:57:43,072 INFO L225 Difference]: With dead ends: 27398 [2021-10-07 15:57:43,073 INFO L226 Difference]: Without dead ends: 25616 [2021-10-07 15:57:43,073 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 4331.1ms TimeCoverageRelationStatistics Valid=532, Invalid=1724, Unknown=0, NotChecked=0, Total=2256 [2021-10-07 15:57:43,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25616 states. [2021-10-07 15:57:43,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25616 to 17680. [2021-10-07 15:57:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17680 states, 17679 states have (on average 3.8107359013518862) internal successors, (67370), 17679 states have internal predecessors, (67370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17680 states to 17680 states and 67370 transitions. [2021-10-07 15:57:43,827 INFO L78 Accepts]: Start accepts. Automaton has 17680 states and 67370 transitions. Word has length 47 [2021-10-07 15:57:43,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:57:43,827 INFO L470 AbstractCegarLoop]: Abstraction has 17680 states and 67370 transitions. [2021-10-07 15:57:43,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:57:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 17680 states and 67370 transitions. [2021-10-07 15:57:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:57:43,871 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:57:43,872 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:57:43,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-07 15:57:44,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:57:44,073 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:57:44,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:57:44,074 INFO L82 PathProgramCache]: Analyzing trace with hash -87309625, now seen corresponding path program 10 times [2021-10-07 15:57:44,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:57:44,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275937144] [2021-10-07 15:57:44,075 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:57:44,075 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:57:44,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:57:44,076 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:57:44,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-07 15:57:44,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:57:44,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:57:44,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:57:44,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:57:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:44,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:57:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:57:45,279 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:57:45,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275937144] [2021-10-07 15:57:45,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275937144] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:57:45,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:57:45,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:57:45,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299355932] [2021-10-07 15:57:45,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:57:45,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:57:45,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:57:45,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:57:45,282 INFO L87 Difference]: Start difference. First operand 17680 states and 67370 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:00,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:58:00,397 INFO L93 Difference]: Finished difference Result 27274 states and 104193 transitions. [2021-10-07 15:58:00,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-07 15:58:00,403 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:58:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:58:00,516 INFO L225 Difference]: With dead ends: 27274 [2021-10-07 15:58:00,517 INFO L226 Difference]: Without dead ends: 25940 [2021-10-07 15:58:00,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 6023.4ms TimeCoverageRelationStatistics Valid=677, Invalid=1975, Unknown=0, NotChecked=0, Total=2652 [2021-10-07 15:58:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25940 states. [2021-10-07 15:58:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25940 to 18530. [2021-10-07 15:58:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18530 states, 18529 states have (on average 3.8027956176803928) internal successors, (70462), 18529 states have internal predecessors, (70462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18530 states to 18530 states and 70462 transitions. [2021-10-07 15:58:01,298 INFO L78 Accepts]: Start accepts. Automaton has 18530 states and 70462 transitions. Word has length 47 [2021-10-07 15:58:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:58:01,299 INFO L470 AbstractCegarLoop]: Abstraction has 18530 states and 70462 transitions. [2021-10-07 15:58:01,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:01,299 INFO L276 IsEmpty]: Start isEmpty. Operand 18530 states and 70462 transitions. [2021-10-07 15:58:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:58:01,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:58:01,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:58:01,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-07 15:58:01,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:58:01,548 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:58:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:58:01,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1711491801, now seen corresponding path program 11 times [2021-10-07 15:58:01,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:58:01,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224923398] [2021-10-07 15:58:01,550 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:58:01,550 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:58:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:58:01,551 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:58:01,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-07 15:58:01,902 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:58:01,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:58:01,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:58:01,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:58:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:02,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:58:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:02,444 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:58:02,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224923398] [2021-10-07 15:58:02,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224923398] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:58:02,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:58:02,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:58:02,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649405066] [2021-10-07 15:58:02,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:58:02,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:58:02,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:58:02,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:58:02,447 INFO L87 Difference]: Start difference. First operand 18530 states and 70462 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:07,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:58:07,473 INFO L93 Difference]: Finished difference Result 23144 states and 87698 transitions. [2021-10-07 15:58:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-07 15:58:07,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:58:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:58:07,559 INFO L225 Difference]: With dead ends: 23144 [2021-10-07 15:58:07,560 INFO L226 Difference]: Without dead ends: 23144 [2021-10-07 15:58:07,560 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1495.0ms TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2021-10-07 15:58:07,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23144 states. [2021-10-07 15:58:08,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23144 to 18664. [2021-10-07 15:58:08,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18664 states, 18663 states have (on average 3.7969779778170714) internal successors, (70863), 18663 states have internal predecessors, (70863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18664 states to 18664 states and 70863 transitions. [2021-10-07 15:58:08,418 INFO L78 Accepts]: Start accepts. Automaton has 18664 states and 70863 transitions. Word has length 47 [2021-10-07 15:58:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:58:08,418 INFO L470 AbstractCegarLoop]: Abstraction has 18664 states and 70863 transitions. [2021-10-07 15:58:08,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 18664 states and 70863 transitions. [2021-10-07 15:58:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:58:08,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:58:08,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:58:08,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-07 15:58:08,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:58:08,693 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:58:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:58:08,694 INFO L82 PathProgramCache]: Analyzing trace with hash 586970705, now seen corresponding path program 12 times [2021-10-07 15:58:08,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:58:08,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878755873] [2021-10-07 15:58:08,695 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:58:08,695 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:58:08,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:58:08,696 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:58:08,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-07 15:58:09,061 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:58:09,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:58:09,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:58:09,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:58:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:09,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:58:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:09,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:58:09,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878755873] [2021-10-07 15:58:09,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878755873] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:58:09,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:58:09,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:58:09,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499771373] [2021-10-07 15:58:09,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:58:09,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:58:09,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:58:09,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:58:09,786 INFO L87 Difference]: Start difference. First operand 18664 states and 70863 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:58:21,904 INFO L93 Difference]: Finished difference Result 31272 states and 119985 transitions. [2021-10-07 15:58:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-07 15:58:21,905 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:58:21,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:58:22,278 INFO L225 Difference]: With dead ends: 31272 [2021-10-07 15:58:22,278 INFO L226 Difference]: Without dead ends: 29762 [2021-10-07 15:58:22,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 4814.1ms TimeCoverageRelationStatistics Valid=570, Invalid=1980, Unknown=0, NotChecked=0, Total=2550 [2021-10-07 15:58:22,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29762 states. [2021-10-07 15:58:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29762 to 18584. [2021-10-07 15:58:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18584 states, 18583 states have (on average 3.799278910832481) internal successors, (70602), 18583 states have internal predecessors, (70602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18584 states to 18584 states and 70602 transitions. [2021-10-07 15:58:22,839 INFO L78 Accepts]: Start accepts. Automaton has 18584 states and 70602 transitions. Word has length 47 [2021-10-07 15:58:22,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:58:22,840 INFO L470 AbstractCegarLoop]: Abstraction has 18584 states and 70602 transitions. [2021-10-07 15:58:22,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:22,840 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states and 70602 transitions. [2021-10-07 15:58:23,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:58:23,095 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:58:23,095 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:58:23,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-07 15:58:23,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:58:23,309 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:58:23,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:58:23,312 INFO L82 PathProgramCache]: Analyzing trace with hash 249177451, now seen corresponding path program 13 times [2021-10-07 15:58:23,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:58:23,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551388838] [2021-10-07 15:58:23,313 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:58:23,313 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:58:23,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:58:23,314 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:58:23,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-07 15:58:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:58:23,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:58:23,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:58:23,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:23,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:58:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:24,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:58:24,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551388838] [2021-10-07 15:58:24,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551388838] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:58:24,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:58:24,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:58:24,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372941092] [2021-10-07 15:58:24,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:58:24,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:58:24,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:58:24,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:58:24,507 INFO L87 Difference]: Start difference. First operand 18584 states and 70602 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:39,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:58:39,709 INFO L93 Difference]: Finished difference Result 33090 states and 125250 transitions. [2021-10-07 15:58:39,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-07 15:58:39,710 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:58:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:58:40,046 INFO L225 Difference]: With dead ends: 33090 [2021-10-07 15:58:40,047 INFO L226 Difference]: Without dead ends: 31062 [2021-10-07 15:58:40,047 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 6112.2ms TimeCoverageRelationStatistics Valid=653, Invalid=2103, Unknown=0, NotChecked=0, Total=2756 [2021-10-07 15:58:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31062 states. [2021-10-07 15:58:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31062 to 18420. [2021-10-07 15:58:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18420 states, 18419 states have (on average 3.7981975134372115) internal successors, (69959), 18419 states have internal predecessors, (69959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:40,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18420 states to 18420 states and 69959 transitions. [2021-10-07 15:58:40,609 INFO L78 Accepts]: Start accepts. Automaton has 18420 states and 69959 transitions. Word has length 47 [2021-10-07 15:58:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:58:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 18420 states and 69959 transitions. [2021-10-07 15:58:40,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:40,610 INFO L276 IsEmpty]: Start isEmpty. Operand 18420 states and 69959 transitions. [2021-10-07 15:58:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:58:40,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:58:40,658 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:58:40,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-07 15:58:40,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:58:40,858 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:58:40,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:58:40,860 INFO L82 PathProgramCache]: Analyzing trace with hash 7069221, now seen corresponding path program 14 times [2021-10-07 15:58:40,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:58:40,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516546026] [2021-10-07 15:58:40,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:58:40,861 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:58:40,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:58:40,862 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:58:40,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-07 15:58:41,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:58:41,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:58:41,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:58:41,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:58:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:41,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:58:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:42,068 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:58:42,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516546026] [2021-10-07 15:58:42,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516546026] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:58:42,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:58:42,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:58:42,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557746891] [2021-10-07 15:58:42,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:58:42,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:58:42,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:58:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:58:42,071 INFO L87 Difference]: Start difference. First operand 18420 states and 69959 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:58:51,909 INFO L93 Difference]: Finished difference Result 27168 states and 102221 transitions. [2021-10-07 15:58:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-07 15:58:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:58:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:58:52,006 INFO L225 Difference]: With dead ends: 27168 [2021-10-07 15:58:52,007 INFO L226 Difference]: Without dead ends: 25676 [2021-10-07 15:58:52,007 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 3873.9ms TimeCoverageRelationStatistics Valid=644, Invalid=2662, Unknown=0, NotChecked=0, Total=3306 [2021-10-07 15:58:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25676 states. [2021-10-07 15:58:52,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25676 to 18514. [2021-10-07 15:58:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18514 states, 18513 states have (on average 3.7936585102360505) internal successors, (70232), 18513 states have internal predecessors, (70232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18514 states to 18514 states and 70232 transitions. [2021-10-07 15:58:52,729 INFO L78 Accepts]: Start accepts. Automaton has 18514 states and 70232 transitions. Word has length 47 [2021-10-07 15:58:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:58:52,729 INFO L470 AbstractCegarLoop]: Abstraction has 18514 states and 70232 transitions. [2021-10-07 15:58:52,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:58:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 18514 states and 70232 transitions. [2021-10-07 15:58:52,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:58:52,773 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:58:52,773 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:58:52,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-07 15:58:52,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:58:52,979 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:58:52,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:58:52,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2049611171, now seen corresponding path program 15 times [2021-10-07 15:58:52,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:58:52,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76371570] [2021-10-07 15:58:52,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 15:58:52,981 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:58:52,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:58:52,982 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:58:52,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-07 15:58:53,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 15:58:53,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:58:53,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:58:53,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:58:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:53,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:58:54,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:58:54,131 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:58:54,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76371570] [2021-10-07 15:58:54,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76371570] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:58:54,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:58:54,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:58:54,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195092049] [2021-10-07 15:58:54,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:58:54,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:58:54,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:58:54,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:58:54,133 INFO L87 Difference]: Start difference. First operand 18514 states and 70232 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:59:08,114 INFO L93 Difference]: Finished difference Result 28670 states and 106916 transitions. [2021-10-07 15:59:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-07 15:59:08,117 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:59:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:59:08,223 INFO L225 Difference]: With dead ends: 28670 [2021-10-07 15:59:08,223 INFO L226 Difference]: Without dead ends: 27450 [2021-10-07 15:59:08,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 5283.3ms TimeCoverageRelationStatistics Valid=642, Invalid=2220, Unknown=0, NotChecked=0, Total=2862 [2021-10-07 15:59:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27450 states. [2021-10-07 15:59:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27450 to 18292. [2021-10-07 15:59:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18292 states, 18291 states have (on average 3.794051719424854) internal successors, (69397), 18291 states have internal predecessors, (69397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18292 states to 18292 states and 69397 transitions. [2021-10-07 15:59:08,980 INFO L78 Accepts]: Start accepts. Automaton has 18292 states and 69397 transitions. Word has length 47 [2021-10-07 15:59:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:59:08,980 INFO L470 AbstractCegarLoop]: Abstraction has 18292 states and 69397 transitions. [2021-10-07 15:59:08,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 18292 states and 69397 transitions. [2021-10-07 15:59:09,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:59:09,024 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:59:09,024 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:59:09,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-07 15:59:09,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:59:09,226 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:59:09,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:59:09,227 INFO L82 PathProgramCache]: Analyzing trace with hash -738743895, now seen corresponding path program 16 times [2021-10-07 15:59:09,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:59:09,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400251928] [2021-10-07 15:59:09,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 15:59:09,228 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:59:09,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:59:09,229 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:59:09,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-07 15:59:09,595 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 15:59:09,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:59:09,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 15:59:09,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:59:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:09,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:59:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:10,378 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:59:10,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400251928] [2021-10-07 15:59:10,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400251928] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:59:10,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:59:10,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 15:59:10,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417614663] [2021-10-07 15:59:10,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 15:59:10,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:59:10,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 15:59:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2021-10-07 15:59:10,380 INFO L87 Difference]: Start difference. First operand 18292 states and 69397 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:25,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:59:25,228 INFO L93 Difference]: Finished difference Result 25446 states and 94203 transitions. [2021-10-07 15:59:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-07 15:59:25,230 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:59:25,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:59:25,314 INFO L225 Difference]: With dead ends: 25446 [2021-10-07 15:59:25,315 INFO L226 Difference]: Without dead ends: 24086 [2021-10-07 15:59:25,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1163 ImplicationChecksByTransitivity, 6953.3ms TimeCoverageRelationStatistics Valid=877, Invalid=3413, Unknown=0, NotChecked=0, Total=4290 [2021-10-07 15:59:25,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24086 states. [2021-10-07 15:59:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24086 to 18130. [2021-10-07 15:59:25,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18130 states, 18129 states have (on average 3.784764741574273) internal successors, (68614), 18129 states have internal predecessors, (68614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18130 states to 18130 states and 68614 transitions. [2021-10-07 15:59:26,042 INFO L78 Accepts]: Start accepts. Automaton has 18130 states and 68614 transitions. Word has length 47 [2021-10-07 15:59:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:59:26,043 INFO L470 AbstractCegarLoop]: Abstraction has 18130 states and 68614 transitions. [2021-10-07 15:59:26,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 18130 states and 68614 transitions. [2021-10-07 15:59:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:59:26,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:59:26,086 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:59:26,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-07 15:59:26,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:59:26,288 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:59:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:59:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash 536552117, now seen corresponding path program 17 times [2021-10-07 15:59:26,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:59:26,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990144408] [2021-10-07 15:59:26,290 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 15:59:26,290 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:59:26,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:59:26,291 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:59:26,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-07 15:59:26,681 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:59:26,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:59:26,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:59:26,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:59:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:26,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:59:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:27,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:59:27,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990144408] [2021-10-07 15:59:27,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990144408] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:59:27,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:59:27,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 15:59:27,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418938940] [2021-10-07 15:59:27,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 15:59:27,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:59:27,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 15:59:27,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-10-07 15:59:27,243 INFO L87 Difference]: Start difference. First operand 18130 states and 68614 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:59:30,471 INFO L93 Difference]: Finished difference Result 22608 states and 82995 transitions. [2021-10-07 15:59:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-07 15:59:30,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:59:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:59:30,573 INFO L225 Difference]: With dead ends: 22608 [2021-10-07 15:59:30,574 INFO L226 Difference]: Without dead ends: 22592 [2021-10-07 15:59:30,574 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1129.3ms TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 15:59:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22592 states. [2021-10-07 15:59:30,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22592 to 18656. [2021-10-07 15:59:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18656 states, 18655 states have (on average 3.7650495845617797) internal successors, (70237), 18655 states have internal predecessors, (70237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18656 states to 18656 states and 70237 transitions. [2021-10-07 15:59:31,082 INFO L78 Accepts]: Start accepts. Automaton has 18656 states and 70237 transitions. Word has length 47 [2021-10-07 15:59:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:59:31,082 INFO L470 AbstractCegarLoop]: Abstraction has 18656 states and 70237 transitions. [2021-10-07 15:59:31,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:31,083 INFO L276 IsEmpty]: Start isEmpty. Operand 18656 states and 70237 transitions. [2021-10-07 15:59:31,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:59:31,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:59:31,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:59:31,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-07 15:59:31,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:59:31,702 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:59:31,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:59:31,703 INFO L82 PathProgramCache]: Analyzing trace with hash -587968979, now seen corresponding path program 18 times [2021-10-07 15:59:31,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:59:31,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408771501] [2021-10-07 15:59:31,704 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 15:59:31,704 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:59:31,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:59:31,705 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:59:31,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-07 15:59:32,204 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 15:59:32,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:59:32,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:59:32,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:59:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:32,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:59:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:33,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:59:33,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408771501] [2021-10-07 15:59:33,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408771501] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:59:33,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:59:33,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:59:33,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831111570] [2021-10-07 15:59:33,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:59:33,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:59:33,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:59:33,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:59:33,011 INFO L87 Difference]: Start difference. First operand 18656 states and 70237 transitions. Second operand has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:59:40,539 INFO L93 Difference]: Finished difference Result 25976 states and 95968 transitions. [2021-10-07 15:59:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-07 15:59:40,541 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:59:40,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:59:40,634 INFO L225 Difference]: With dead ends: 25976 [2021-10-07 15:59:40,634 INFO L226 Difference]: Without dead ends: 25070 [2021-10-07 15:59:40,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 2908.5ms TimeCoverageRelationStatistics Valid=470, Invalid=1336, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 15:59:40,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25070 states. [2021-10-07 15:59:41,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25070 to 18060. [2021-10-07 15:59:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18060 states, 18059 states have (on average 3.761836203555014) internal successors, (67935), 18059 states have internal predecessors, (67935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18060 states to 18060 states and 67935 transitions. [2021-10-07 15:59:41,385 INFO L78 Accepts]: Start accepts. Automaton has 18060 states and 67935 transitions. Word has length 47 [2021-10-07 15:59:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:59:41,385 INFO L470 AbstractCegarLoop]: Abstraction has 18060 states and 67935 transitions. [2021-10-07 15:59:41,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0) internal successors, (68), 16 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 18060 states and 67935 transitions. [2021-10-07 15:59:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:59:41,429 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:59:41,429 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:59:41,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-10-07 15:59:41,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:59:41,630 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:59:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:59:41,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1910320079, now seen corresponding path program 19 times [2021-10-07 15:59:41,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:59:41,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536534499] [2021-10-07 15:59:41,632 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 15:59:41,632 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:59:41,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:59:41,633 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:59:41,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-07 15:59:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:59:42,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:59:42,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:59:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:42,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:59:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:42,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:59:42,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536534499] [2021-10-07 15:59:42,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536534499] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:59:42,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:59:42,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:59:42,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794913586] [2021-10-07 15:59:42,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:59:42,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:59:42,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:59:42,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:59:42,748 INFO L87 Difference]: Start difference. First operand 18060 states and 67935 transitions. Second operand has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:59:50,975 INFO L93 Difference]: Finished difference Result 25692 states and 94638 transitions. [2021-10-07 15:59:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-07 15:59:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 15:59:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:59:51,066 INFO L225 Difference]: With dead ends: 25692 [2021-10-07 15:59:51,066 INFO L226 Difference]: Without dead ends: 24722 [2021-10-07 15:59:51,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 3033.9ms TimeCoverageRelationStatistics Valid=470, Invalid=1336, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 15:59:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24722 states. [2021-10-07 15:59:51,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24722 to 17692. [2021-10-07 15:59:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17692 states, 17691 states have (on average 3.755242778814086) internal successors, (66434), 17691 states have internal predecessors, (66434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17692 states to 17692 states and 66434 transitions. [2021-10-07 15:59:51,743 INFO L78 Accepts]: Start accepts. Automaton has 17692 states and 66434 transitions. Word has length 47 [2021-10-07 15:59:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:59:51,743 INFO L470 AbstractCegarLoop]: Abstraction has 17692 states and 66434 transitions. [2021-10-07 15:59:51,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.117647058823529) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:59:51,744 INFO L276 IsEmpty]: Start isEmpty. Operand 17692 states and 66434 transitions. [2021-10-07 15:59:51,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 15:59:51,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:59:51,783 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:59:51,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-07 15:59:51,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:59:51,985 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 15:59:51,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:59:51,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1167870463, now seen corresponding path program 20 times [2021-10-07 15:59:51,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:59:51,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074844353] [2021-10-07 15:59:51,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 15:59:51,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:59:51,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:59:51,988 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:59:51,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-07 15:59:52,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 15:59:52,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 15:59:52,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 15:59:52,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:59:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:52,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:59:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:59:53,152 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:59:53,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074844353] [2021-10-07 15:59:53,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074844353] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:59:53,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:59:53,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 15:59:53,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297726947] [2021-10-07 15:59:53,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 15:59:53,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:59:53,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 15:59:53,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:59:53,154 INFO L87 Difference]: Start difference. First operand 17692 states and 66434 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:00,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:00,602 INFO L93 Difference]: Finished difference Result 25362 states and 93599 transitions. [2021-10-07 16:00:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-07 16:00:00,603 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:00,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:00,689 INFO L225 Difference]: With dead ends: 25362 [2021-10-07 16:00:00,689 INFO L226 Difference]: Without dead ends: 24252 [2021-10-07 16:00:00,689 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 2952.5ms TimeCoverageRelationStatistics Valid=573, Invalid=2079, Unknown=0, NotChecked=0, Total=2652 [2021-10-07 16:00:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24252 states. [2021-10-07 16:00:01,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24252 to 17674. [2021-10-07 16:00:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17674 states, 17673 states have (on average 3.7560685791885926) internal successors, (66381), 17673 states have internal predecessors, (66381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17674 states to 17674 states and 66381 transitions. [2021-10-07 16:00:01,495 INFO L78 Accepts]: Start accepts. Automaton has 17674 states and 66381 transitions. Word has length 47 [2021-10-07 16:00:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:01,495 INFO L470 AbstractCegarLoop]: Abstraction has 17674 states and 66381 transitions. [2021-10-07 16:00:01,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 17674 states and 66381 transitions. [2021-10-07 16:00:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:01,543 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:01,543 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:01,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:01,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:01,750 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:01,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1913683579, now seen corresponding path program 21 times [2021-10-07 16:00:01,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:01,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465955742] [2021-10-07 16:00:01,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 16:00:01,752 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:01,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:01,754 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:01,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-07 16:00:02,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 16:00:02,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:00:02,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 16:00:02,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:02,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:02,982 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:02,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465955742] [2021-10-07 16:00:02,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465955742] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:02,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:02,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 16:00:02,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688779724] [2021-10-07 16:00:02,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 16:00:02,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:02,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 16:00:02,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-10-07 16:00:02,984 INFO L87 Difference]: Start difference. First operand 17674 states and 66381 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:14,607 INFO L93 Difference]: Finished difference Result 28334 states and 104264 transitions. [2021-10-07 16:00:14,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-07 16:00:14,610 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:14,718 INFO L225 Difference]: With dead ends: 28334 [2021-10-07 16:00:14,719 INFO L226 Difference]: Without dead ends: 27062 [2021-10-07 16:00:14,719 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 4822.9ms TimeCoverageRelationStatistics Valid=700, Invalid=2380, Unknown=0, NotChecked=0, Total=3080 [2021-10-07 16:00:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27062 states. [2021-10-07 16:00:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27062 to 17656. [2021-10-07 16:00:15,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17656 states, 17655 states have (on average 3.7567827810818466) internal successors, (66326), 17655 states have internal predecessors, (66326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17656 states to 17656 states and 66326 transitions. [2021-10-07 16:00:15,262 INFO L78 Accepts]: Start accepts. Automaton has 17656 states and 66326 transitions. Word has length 47 [2021-10-07 16:00:15,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:15,262 INFO L470 AbstractCegarLoop]: Abstraction has 17656 states and 66326 transitions. [2021-10-07 16:00:15,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 17656 states and 66326 transitions. [2021-10-07 16:00:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:15,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:15,305 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:15,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:15,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:15,519 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:15,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:15,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1950882515, now seen corresponding path program 22 times [2021-10-07 16:00:15,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:15,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957454469] [2021-10-07 16:00:15,521 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 16:00:15,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:15,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:15,524 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:15,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-07 16:00:16,150 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 16:00:16,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:00:16,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-07 16:00:16,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:16,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:16,812 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:16,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957454469] [2021-10-07 16:00:16,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957454469] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:16,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:16,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-07 16:00:16,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82535372] [2021-10-07 16:00:16,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-07 16:00:16,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:16,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-07 16:00:16,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-10-07 16:00:16,816 INFO L87 Difference]: Start difference. First operand 17656 states and 66326 transitions. Second operand has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:21,950 INFO L93 Difference]: Finished difference Result 23402 states and 84268 transitions. [2021-10-07 16:00:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-07 16:00:21,951 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:21,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:22,023 INFO L225 Difference]: With dead ends: 23402 [2021-10-07 16:00:22,023 INFO L226 Difference]: Without dead ends: 21540 [2021-10-07 16:00:22,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2299.0ms TimeCoverageRelationStatistics Valid=369, Invalid=1437, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 16:00:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21540 states. [2021-10-07 16:00:22,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21540 to 17214. [2021-10-07 16:00:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17214 states, 17213 states have (on average 3.715970487422297) internal successors, (63963), 17213 states have internal predecessors, (63963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17214 states to 17214 states and 63963 transitions. [2021-10-07 16:00:22,649 INFO L78 Accepts]: Start accepts. Automaton has 17214 states and 63963 transitions. Word has length 47 [2021-10-07 16:00:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:22,649 INFO L470 AbstractCegarLoop]: Abstraction has 17214 states and 63963 transitions. [2021-10-07 16:00:22,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 17214 states and 63963 transitions. [2021-10-07 16:00:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:22,690 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:22,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:22,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:22,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:22,892 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:22,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1598271665, now seen corresponding path program 23 times [2021-10-07 16:00:22,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:22,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38049162] [2021-10-07 16:00:22,894 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 16:00:22,894 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:22,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:22,895 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:22,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-07 16:00:23,385 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 16:00:23,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:00:23,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 16:00:23,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:23,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:24,156 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:24,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38049162] [2021-10-07 16:00:24,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38049162] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:24,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:24,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 16:00:24,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416144930] [2021-10-07 16:00:24,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 16:00:24,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:24,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 16:00:24,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-10-07 16:00:24,158 INFO L87 Difference]: Start difference. First operand 17214 states and 63963 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:30,908 INFO L93 Difference]: Finished difference Result 22526 states and 82186 transitions. [2021-10-07 16:00:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-07 16:00:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:30,985 INFO L225 Difference]: With dead ends: 22526 [2021-10-07 16:00:30,985 INFO L226 Difference]: Without dead ends: 22204 [2021-10-07 16:00:30,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 2645.9ms TimeCoverageRelationStatistics Valid=489, Invalid=1581, Unknown=0, NotChecked=0, Total=2070 [2021-10-07 16:00:31,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22204 states. [2021-10-07 16:00:31,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22204 to 17208. [2021-10-07 16:00:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17208 states, 17207 states have (on average 3.716394490614285) internal successors, (63948), 17207 states have internal predecessors, (63948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17208 states to 17208 states and 63948 transitions. [2021-10-07 16:00:31,691 INFO L78 Accepts]: Start accepts. Automaton has 17208 states and 63948 transitions. Word has length 47 [2021-10-07 16:00:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:31,691 INFO L470 AbstractCegarLoop]: Abstraction has 17208 states and 63948 transitions. [2021-10-07 16:00:31,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 17208 states and 63948 transitions. [2021-10-07 16:00:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:31,732 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:31,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:31,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:31,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:31,934 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:31,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:31,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1054274105, now seen corresponding path program 24 times [2021-10-07 16:00:31,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:31,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058722094] [2021-10-07 16:00:31,935 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 16:00:31,936 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:31,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:31,937 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:31,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-07 16:00:32,409 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 16:00:32,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:00:32,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-07 16:00:32,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:32,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:32,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:33,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:33,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:33,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058722094] [2021-10-07 16:00:33,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058722094] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:33,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:33,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-07 16:00:33,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065800633] [2021-10-07 16:00:33,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-07 16:00:33,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:33,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-07 16:00:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-07 16:00:33,217 INFO L87 Difference]: Start difference. First operand 17208 states and 63948 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:36,626 INFO L93 Difference]: Finished difference Result 20040 states and 72270 transitions. [2021-10-07 16:00:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-07 16:00:36,627 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:36,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:36,693 INFO L225 Difference]: With dead ends: 20040 [2021-10-07 16:00:36,694 INFO L226 Difference]: Without dead ends: 18934 [2021-10-07 16:00:36,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1783.5ms TimeCoverageRelationStatistics Valid=255, Invalid=935, Unknown=0, NotChecked=0, Total=1190 [2021-10-07 16:00:36,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18934 states. [2021-10-07 16:00:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18934 to 17000. [2021-10-07 16:00:37,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17000 states, 16999 states have (on average 3.7065709747632214) internal successors, (63008), 16999 states have internal predecessors, (63008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:37,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17000 states to 17000 states and 63008 transitions. [2021-10-07 16:00:37,341 INFO L78 Accepts]: Start accepts. Automaton has 17000 states and 63008 transitions. Word has length 47 [2021-10-07 16:00:37,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:37,342 INFO L470 AbstractCegarLoop]: Abstraction has 17000 states and 63008 transitions. [2021-10-07 16:00:37,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:37,342 INFO L276 IsEmpty]: Start isEmpty. Operand 17000 states and 63008 transitions. [2021-10-07 16:00:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:37,381 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:37,381 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:37,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:37,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:37,582 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:37,583 INFO L82 PathProgramCache]: Analyzing trace with hash -988389863, now seen corresponding path program 25 times [2021-10-07 16:00:37,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:37,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548083170] [2021-10-07 16:00:37,585 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 16:00:37,585 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:37,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:37,586 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:37,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-07 16:00:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:00:38,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 16:00:38,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:38,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:38,632 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:38,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548083170] [2021-10-07 16:00:38,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548083170] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:38,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:38,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 16:00:38,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135338148] [2021-10-07 16:00:38,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 16:00:38,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:38,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 16:00:38,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-07 16:00:38,634 INFO L87 Difference]: Start difference. First operand 17000 states and 63008 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:44,957 INFO L93 Difference]: Finished difference Result 20152 states and 73747 transitions. [2021-10-07 16:00:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-07 16:00:44,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:44,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:45,028 INFO L225 Difference]: With dead ends: 20152 [2021-10-07 16:00:45,028 INFO L226 Difference]: Without dead ends: 20038 [2021-10-07 16:00:45,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2324.9ms TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2021-10-07 16:00:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20038 states. [2021-10-07 16:00:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20038 to 16932. [2021-10-07 16:00:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16932 states, 16931 states have (on average 3.7048609060303583) internal successors, (62727), 16931 states have internal predecessors, (62727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:45,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16932 states to 16932 states and 62727 transitions. [2021-10-07 16:00:45,764 INFO L78 Accepts]: Start accepts. Automaton has 16932 states and 62727 transitions. Word has length 47 [2021-10-07 16:00:45,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:45,764 INFO L470 AbstractCegarLoop]: Abstraction has 16932 states and 62727 transitions. [2021-10-07 16:00:45,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 16932 states and 62727 transitions. [2021-10-07 16:00:45,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:45,805 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:45,805 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:45,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:46,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:46,006 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:46,007 INFO L82 PathProgramCache]: Analyzing trace with hash -651902787, now seen corresponding path program 26 times [2021-10-07 16:00:46,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:46,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052781131] [2021-10-07 16:00:46,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 16:00:46,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:46,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:46,010 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:46,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-07 16:00:46,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 16:00:46,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:00:46,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 16:00:46,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:46,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:47,063 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:47,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052781131] [2021-10-07 16:00:47,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052781131] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:47,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:47,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 16:00:47,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789874956] [2021-10-07 16:00:47,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 16:00:47,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 16:00:47,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-07 16:00:47,066 INFO L87 Difference]: Start difference. First operand 16932 states and 62727 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:51,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:51,466 INFO L93 Difference]: Finished difference Result 18860 states and 68660 transitions. [2021-10-07 16:00:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-07 16:00:51,467 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:51,530 INFO L225 Difference]: With dead ends: 18860 [2021-10-07 16:00:51,530 INFO L226 Difference]: Without dead ends: 18762 [2021-10-07 16:00:51,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1421.4ms TimeCoverageRelationStatistics Valid=235, Invalid=1025, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 16:00:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18762 states. [2021-10-07 16:00:52,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18762 to 16858. [2021-10-07 16:00:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16858 states, 16857 states have (on average 3.70914160289494) internal successors, (62525), 16857 states have internal predecessors, (62525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16858 states to 16858 states and 62525 transitions. [2021-10-07 16:00:52,165 INFO L78 Accepts]: Start accepts. Automaton has 16858 states and 62525 transitions. Word has length 47 [2021-10-07 16:00:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:52,165 INFO L470 AbstractCegarLoop]: Abstraction has 16858 states and 62525 transitions. [2021-10-07 16:00:52,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 16858 states and 62525 transitions. [2021-10-07 16:00:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:52,205 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:52,205 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:52,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:52,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:52,406 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:52,407 INFO L82 PathProgramCache]: Analyzing trace with hash 324825763, now seen corresponding path program 27 times [2021-10-07 16:00:52,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:52,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448822302] [2021-10-07 16:00:52,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 16:00:52,409 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:52,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:52,410 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:52,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-07 16:00:52,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 16:00:52,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:00:52,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 16:00:52,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:00:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:53,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:00:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:00:53,527 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:00:53,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448822302] [2021-10-07 16:00:53,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448822302] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:00:53,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:00:53,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-07 16:00:53,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977676426] [2021-10-07 16:00:53,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-07 16:00:53,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:00:53,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-07 16:00:53,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-07 16:00:53,529 INFO L87 Difference]: Start difference. First operand 16858 states and 62525 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:58,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:00:58,781 INFO L93 Difference]: Finished difference Result 17304 states and 63068 transitions. [2021-10-07 16:00:58,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-07 16:00:58,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:00:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:00:58,838 INFO L225 Difference]: With dead ends: 17304 [2021-10-07 16:00:58,839 INFO L226 Difference]: Without dead ends: 17190 [2021-10-07 16:00:58,839 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1640.2ms TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2021-10-07 16:00:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17190 states. [2021-10-07 16:00:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17190 to 15540. [2021-10-07 16:00:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15540 states, 15539 states have (on average 3.7044211339211017) internal successors, (57563), 15539 states have internal predecessors, (57563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:59,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15540 states to 15540 states and 57563 transitions. [2021-10-07 16:00:59,233 INFO L78 Accepts]: Start accepts. Automaton has 15540 states and 57563 transitions. Word has length 47 [2021-10-07 16:00:59,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:00:59,233 INFO L470 AbstractCegarLoop]: Abstraction has 15540 states and 57563 transitions. [2021-10-07 16:00:59,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:00:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 15540 states and 57563 transitions. [2021-10-07 16:00:59,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:00:59,269 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:00:59,269 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:00:59,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-07 16:00:59,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:00:59,470 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:00:59,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:00:59,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1397331705, now seen corresponding path program 28 times [2021-10-07 16:00:59,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:00:59,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14884939] [2021-10-07 16:00:59,472 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 16:00:59,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:00:59,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:00:59,473 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:00:59,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-07 16:01:00,022 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 16:01:00,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:01:00,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 16:01:00,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:01:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:01:00,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:01:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:01:00,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:01:00,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14884939] [2021-10-07 16:01:00,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14884939] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:01:00,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:01:00,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-07 16:01:00,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384539986] [2021-10-07 16:01:00,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-07 16:01:00,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:01:00,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-07 16:01:00,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-10-07 16:01:00,778 INFO L87 Difference]: Start difference. First operand 15540 states and 57563 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:01:05,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:01:05,804 INFO L93 Difference]: Finished difference Result 15184 states and 54325 transitions. [2021-10-07 16:01:05,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-07 16:01:05,805 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:01:05,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:01:05,850 INFO L225 Difference]: With dead ends: 15184 [2021-10-07 16:01:05,850 INFO L226 Difference]: Without dead ends: 14220 [2021-10-07 16:01:05,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1852.0ms TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2021-10-07 16:01:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14220 states. [2021-10-07 16:01:06,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14220 to 13470. [2021-10-07 16:01:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13470 states, 13469 states have (on average 3.661964511099562) internal successors, (49323), 13469 states have internal predecessors, (49323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:01:06,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13470 states to 13470 states and 49323 transitions. [2021-10-07 16:01:06,401 INFO L78 Accepts]: Start accepts. Automaton has 13470 states and 49323 transitions. Word has length 47 [2021-10-07 16:01:06,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:01:06,401 INFO L470 AbstractCegarLoop]: Abstraction has 13470 states and 49323 transitions. [2021-10-07 16:01:06,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:01:06,401 INFO L276 IsEmpty]: Start isEmpty. Operand 13470 states and 49323 transitions. [2021-10-07 16:01:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:01:06,442 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:01:06,442 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:01:06,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-10-07 16:01:06,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:01:06,656 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:01:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:01:06,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1666723071, now seen corresponding path program 29 times [2021-10-07 16:01:06,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:01:06,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142584757] [2021-10-07 16:01:06,659 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 16:01:06,659 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:01:06,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:01:06,660 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:01:06,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-07 16:01:07,240 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 16:01:07,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:01:07,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 16:01:07,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:01:07,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:01:07,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:01:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:01:08,289 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:01:08,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142584757] [2021-10-07 16:01:08,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142584757] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:01:08,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:01:08,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 16:01:08,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545485007] [2021-10-07 16:01:08,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 16:01:08,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:01:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 16:01:08,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2021-10-07 16:01:08,290 INFO L87 Difference]: Start difference. First operand 13470 states and 49323 transitions. Second operand has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 20 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:01:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:01:29,894 INFO L93 Difference]: Finished difference Result 22244 states and 80438 transitions. [2021-10-07 16:01:29,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-07 16:01:29,895 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 20 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:01:29,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:01:29,958 INFO L225 Difference]: With dead ends: 22244 [2021-10-07 16:01:29,959 INFO L226 Difference]: Without dead ends: 21382 [2021-10-07 16:01:29,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 10010.3ms TimeCoverageRelationStatistics Valid=796, Invalid=3494, Unknown=0, NotChecked=0, Total=4290 [2021-10-07 16:01:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21382 states. [2021-10-07 16:01:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21382 to 14954. [2021-10-07 16:01:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14954 states, 14953 states have (on average 3.645021066006821) internal successors, (54504), 14953 states have internal predecessors, (54504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:01:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14954 states to 14954 states and 54504 transitions. [2021-10-07 16:01:30,320 INFO L78 Accepts]: Start accepts. Automaton has 14954 states and 54504 transitions. Word has length 47 [2021-10-07 16:01:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:01:30,320 INFO L470 AbstractCegarLoop]: Abstraction has 14954 states and 54504 transitions. [2021-10-07 16:01:30,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 20 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:01:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 14954 states and 54504 transitions. [2021-10-07 16:01:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:01:30,352 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:01:30,353 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:01:30,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-07 16:01:30,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:01:30,560 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:01:30,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:01:30,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1699040725, now seen corresponding path program 30 times [2021-10-07 16:01:30,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:01:30,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507771996] [2021-10-07 16:01:30,562 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 16:01:30,562 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:01:30,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:01:30,563 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:01:30,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-07 16:01:31,111 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 16:01:31,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:01:31,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 16:01:31,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:01:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:01:31,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:01:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:01:32,371 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:01:32,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507771996] [2021-10-07 16:01:32,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507771996] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:01:32,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:01:32,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 16:01:32,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951805089] [2021-10-07 16:01:32,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 16:01:32,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:01:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 16:01:32,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-10-07 16:01:32,373 INFO L87 Difference]: Start difference. First operand 14954 states and 54504 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:02:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:02:08,567 INFO L93 Difference]: Finished difference Result 23808 states and 85625 transitions. [2021-10-07 16:02:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-07 16:02:08,568 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:02:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:02:08,640 INFO L225 Difference]: With dead ends: 23808 [2021-10-07 16:02:08,640 INFO L226 Difference]: Without dead ends: 23218 [2021-10-07 16:02:08,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 20048.4ms TimeCoverageRelationStatistics Valid=993, Invalid=3699, Unknown=0, NotChecked=0, Total=4692 [2021-10-07 16:02:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23218 states. [2021-10-07 16:02:09,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23218 to 14798. [2021-10-07 16:02:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14798 states, 14797 states have (on average 3.6406704061634114) internal successors, (53871), 14797 states have internal predecessors, (53871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:02:09,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14798 states to 14798 states and 53871 transitions. [2021-10-07 16:02:09,178 INFO L78 Accepts]: Start accepts. Automaton has 14798 states and 53871 transitions. Word has length 47 [2021-10-07 16:02:09,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:02:09,178 INFO L470 AbstractCegarLoop]: Abstraction has 14798 states and 53871 transitions. [2021-10-07 16:02:09,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:02:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 14798 states and 53871 transitions. [2021-10-07 16:02:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:02:09,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:02:09,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:02:09,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-07 16:02:09,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:02:09,418 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:02:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:02:09,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1572252563, now seen corresponding path program 31 times [2021-10-07 16:02:09,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:02:09,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364784379] [2021-10-07 16:02:09,420 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-07 16:02:09,420 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:02:09,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:02:09,421 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:02:09,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-07 16:02:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:02:10,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 16:02:10,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:02:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:02:10,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:02:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:02:10,951 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:02:10,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364784379] [2021-10-07 16:02:10,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364784379] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:02:10,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:02:10,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 16:02:10,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655478859] [2021-10-07 16:02:10,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 16:02:10,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:02:10,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 16:02:10,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2021-10-07 16:02:10,953 INFO L87 Difference]: Start difference. First operand 14798 states and 53871 transitions. Second operand has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:02:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:02:30,610 INFO L93 Difference]: Finished difference Result 22540 states and 80628 transitions. [2021-10-07 16:02:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-10-07 16:02:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:02:30,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:02:30,677 INFO L225 Difference]: With dead ends: 22540 [2021-10-07 16:02:30,677 INFO L226 Difference]: Without dead ends: 21396 [2021-10-07 16:02:30,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 8092.7ms TimeCoverageRelationStatistics Valid=762, Invalid=4494, Unknown=0, NotChecked=0, Total=5256 [2021-10-07 16:02:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21396 states. [2021-10-07 16:02:31,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21396 to 14918. [2021-10-07 16:02:31,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14918 states, 14917 states have (on average 3.635851712810887) internal successors, (54236), 14917 states have internal predecessors, (54236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:02:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14918 states to 14918 states and 54236 transitions. [2021-10-07 16:02:31,241 INFO L78 Accepts]: Start accepts. Automaton has 14918 states and 54236 transitions. Word has length 47 [2021-10-07 16:02:31,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:02:31,241 INFO L470 AbstractCegarLoop]: Abstraction has 14918 states and 54236 transitions. [2021-10-07 16:02:31,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:02:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand 14918 states and 54236 transitions. [2021-10-07 16:02:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:02:31,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:02:31,275 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:02:31,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-10-07 16:02:31,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:02:31,476 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:02:31,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:02:31,477 INFO L82 PathProgramCache]: Analyzing trace with hash 242673799, now seen corresponding path program 32 times [2021-10-07 16:02:31,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:02:31,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201087472] [2021-10-07 16:02:31,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-07 16:02:31,478 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:02:31,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:02:31,479 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:02:31,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-07 16:02:32,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 16:02:32,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:02:32,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 16:02:32,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:02:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:02:32,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:02:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:02:33,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:02:33,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201087472] [2021-10-07 16:02:33,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201087472] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:02:33,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:02:33,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 16:02:33,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151604787] [2021-10-07 16:02:33,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 16:02:33,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:02:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 16:02:33,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2021-10-07 16:02:33,207 INFO L87 Difference]: Start difference. First operand 14918 states and 54236 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:10,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:03:10,669 INFO L93 Difference]: Finished difference Result 26752 states and 95848 transitions. [2021-10-07 16:03:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-07 16:03:10,670 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:03:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:03:10,757 INFO L225 Difference]: With dead ends: 26752 [2021-10-07 16:03:10,757 INFO L226 Difference]: Without dead ends: 25790 [2021-10-07 16:03:10,758 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1634 ImplicationChecksByTransitivity, 21866.3ms TimeCoverageRelationStatistics Valid=1155, Invalid=5165, Unknown=0, NotChecked=0, Total=6320 [2021-10-07 16:03:10,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25790 states. [2021-10-07 16:03:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25790 to 14776. [2021-10-07 16:03:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14776 states, 14775 states have (on average 3.6343147208121827) internal successors, (53697), 14775 states have internal predecessors, (53697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14776 states to 14776 states and 53697 transitions. [2021-10-07 16:03:11,374 INFO L78 Accepts]: Start accepts. Automaton has 14776 states and 53697 transitions. Word has length 47 [2021-10-07 16:03:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:03:11,374 INFO L470 AbstractCegarLoop]: Abstraction has 14776 states and 53697 transitions. [2021-10-07 16:03:11,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 14776 states and 53697 transitions. [2021-10-07 16:03:11,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:03:11,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:03:11,409 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:03:11,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-07 16:03:11,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:03:11,610 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:03:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:03:11,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1838486893, now seen corresponding path program 33 times [2021-10-07 16:03:11,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:03:11,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087001168] [2021-10-07 16:03:11,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-07 16:03:11,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:03:11,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:03:11,613 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:03:11,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-10-07 16:03:12,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-07 16:03:12,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:03:12,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 16:03:12,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:03:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:03:12,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:03:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:03:13,269 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:03:13,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087001168] [2021-10-07 16:03:13,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087001168] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:03:13,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:03:13,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 16:03:13,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938514085] [2021-10-07 16:03:13,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 16:03:13,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:03:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 16:03:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2021-10-07 16:03:13,271 INFO L87 Difference]: Start difference. First operand 14776 states and 53697 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:03:43,377 INFO L93 Difference]: Finished difference Result 23534 states and 83399 transitions. [2021-10-07 16:03:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-10-07 16:03:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:03:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:03:43,454 INFO L225 Difference]: With dead ends: 23534 [2021-10-07 16:03:43,454 INFO L226 Difference]: Without dead ends: 22516 [2021-10-07 16:03:43,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 16265.0ms TimeCoverageRelationStatistics Valid=1139, Invalid=5667, Unknown=0, NotChecked=0, Total=6806 [2021-10-07 16:03:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22516 states. [2021-10-07 16:03:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22516 to 14808. [2021-10-07 16:03:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14808 states, 14807 states have (on average 3.6317282366448302) internal successors, (53775), 14807 states have internal predecessors, (53775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14808 states to 14808 states and 53775 transitions. [2021-10-07 16:03:44,053 INFO L78 Accepts]: Start accepts. Automaton has 14808 states and 53775 transitions. Word has length 47 [2021-10-07 16:03:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:03:44,053 INFO L470 AbstractCegarLoop]: Abstraction has 14808 states and 53775 transitions. [2021-10-07 16:03:44,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 14808 states and 53775 transitions. [2021-10-07 16:03:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:03:44,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:03:44,085 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:03:44,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-10-07 16:03:44,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:03:44,286 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:03:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:03:44,287 INFO L82 PathProgramCache]: Analyzing trace with hash -392704193, now seen corresponding path program 34 times [2021-10-07 16:03:44,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:03:44,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892518675] [2021-10-07 16:03:44,288 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-07 16:03:44,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:03:44,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:03:44,289 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:03:44,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-10-07 16:03:44,925 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-07 16:03:44,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:03:44,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-07 16:03:44,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:03:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:03:45,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:03:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:03:45,875 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:03:45,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892518675] [2021-10-07 16:03:45,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892518675] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:03:45,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:03:45,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-10-07 16:03:45,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772847861] [2021-10-07 16:03:45,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-07 16:03:45,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:03:45,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-07 16:03:45,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-07 16:03:45,877 INFO L87 Difference]: Start difference. First operand 14808 states and 53775 transitions. Second operand has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:03:58,711 INFO L93 Difference]: Finished difference Result 17746 states and 62596 transitions. [2021-10-07 16:03:58,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-07 16:03:58,712 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:03:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:03:58,771 INFO L225 Difference]: With dead ends: 17746 [2021-10-07 16:03:58,772 INFO L226 Difference]: Without dead ends: 16924 [2021-10-07 16:03:58,772 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 4962.7ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-10-07 16:03:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16924 states. [2021-10-07 16:03:59,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16924 to 14956. [2021-10-07 16:03:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14956 states, 14955 states have (on average 3.623336676696757) internal successors, (54187), 14955 states have internal predecessors, (54187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14956 states to 14956 states and 54187 transitions. [2021-10-07 16:03:59,111 INFO L78 Accepts]: Start accepts. Automaton has 14956 states and 54187 transitions. Word has length 47 [2021-10-07 16:03:59,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:03:59,111 INFO L470 AbstractCegarLoop]: Abstraction has 14956 states and 54187 transitions. [2021-10-07 16:03:59,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 20 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:03:59,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14956 states and 54187 transitions. [2021-10-07 16:03:59,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:03:59,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:03:59,142 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:03:59,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-10-07 16:03:59,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:03:59,343 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:03:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:03:59,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1722282957, now seen corresponding path program 35 times [2021-10-07 16:03:59,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:03:59,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268659364] [2021-10-07 16:03:59,345 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-07 16:03:59,345 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:03:59,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:03:59,347 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:03:59,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-10-07 16:04:00,014 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-07 16:04:00,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:04:00,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 16:04:00,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:04:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:04:00,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:04:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:04:01,278 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:04:01,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268659364] [2021-10-07 16:04:01,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268659364] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:04:01,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:04:01,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 16:04:01,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814991020] [2021-10-07 16:04:01,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 16:04:01,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:04:01,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 16:04:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2021-10-07 16:04:01,280 INFO L87 Difference]: Start difference. First operand 14956 states and 54187 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:04:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:04:32,384 INFO L93 Difference]: Finished difference Result 23924 states and 84964 transitions. [2021-10-07 16:04:32,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-07 16:04:32,385 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-10-07 16:04:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:04:32,463 INFO L225 Difference]: With dead ends: 23924 [2021-10-07 16:04:32,463 INFO L226 Difference]: Without dead ends: 23126 [2021-10-07 16:04:32,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 16621.0ms TimeCoverageRelationStatistics Valid=1041, Invalid=3929, Unknown=0, NotChecked=0, Total=4970 [2021-10-07 16:04:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23126 states. [2021-10-07 16:04:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23126 to 14620. [2021-10-07 16:04:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14620 states, 14619 states have (on average 3.609412408509474) internal successors, (52766), 14619 states have internal predecessors, (52766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:04:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14620 states to 14620 states and 52766 transitions. [2021-10-07 16:04:33,035 INFO L78 Accepts]: Start accepts. Automaton has 14620 states and 52766 transitions. Word has length 47 [2021-10-07 16:04:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:04:33,035 INFO L470 AbstractCegarLoop]: Abstraction has 14620 states and 52766 transitions. [2021-10-07 16:04:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:04:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 14620 states and 52766 transitions. [2021-10-07 16:04:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-07 16:04:33,066 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:04:33,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:04:33,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-10-07 16:04:33,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:04:33,268 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 23 more)] === [2021-10-07 16:04:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:04:33,269 INFO L82 PathProgramCache]: Analyzing trace with hash 491523647, now seen corresponding path program 36 times [2021-10-07 16:04:33,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:04:33,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993838552] [2021-10-07 16:04:33,270 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-07 16:04:33,270 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:04:33,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:04:33,271 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 16:04:33,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-10-07 16:04:34,016 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-07 16:04:34,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-07 16:04:34,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-07 16:04:34,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:04:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:04:34,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:04:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:04:35,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:04:35,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993838552] [2021-10-07 16:04:35,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993838552] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:04:35,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:04:35,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-10-07 16:04:35,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430298504] [2021-10-07 16:04:35,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-07 16:04:35,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:04:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-07 16:04:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2021-10-07 16:04:35,095 INFO L87 Difference]: Start difference. First operand 14620 states and 52766 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 22 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-10-07 16:04:54,585 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-07 16:04:54,585 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-07 16:04:54,594 WARN L223 SmtUtils]: Removed 3 from assertion stack [2021-10-07 16:04:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-07 16:04:54,595 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 16:04:54,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-10-07 16:04:54,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:04:54,796 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. [2021-10-07 16:04:54,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 16:04:54,799 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 16:04:54,800 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-07 16:04:54,801 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 16:04:54,802 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 16:04:54,803 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-07 16:04:54,803 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION [2021-10-07 16:04:54,809 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 16:04:54,809 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 16:04:54,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 04:04:54 BasicIcfg [2021-10-07 16:04:54,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 16:04:54,814 INFO L168 Benchmark]: Toolchain (without parser) took 781760.97 ms. Allocated memory was 151.0 MB in the beginning and 7.8 GB in the end (delta: 7.7 GB). Free memory was 126.8 MB in the beginning and 5.6 GB in the end (delta: -5.5 GB). Peak memory consumption was 2.2 GB. Max. memory is 8.0 GB. [2021-10-07 16:04:54,814 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 122.1 MB in the beginning and 122.1 MB in the end (delta: 96.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 16:04:54,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.62 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 114.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 16:04:54,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.57 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 112.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 16:04:54,815 INFO L168 Benchmark]: Boogie Preprocessor took 37.06 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 110.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 16:04:54,815 INFO L168 Benchmark]: RCFGBuilder took 1057.84 ms. Allocated memory is still 151.0 MB. Free memory was 110.6 MB in the beginning and 122.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. [2021-10-07 16:04:54,816 INFO L168 Benchmark]: TraceAbstraction took 780245.98 ms. Allocated memory was 151.0 MB in the beginning and 7.8 GB in the end (delta: 7.7 GB). Free memory was 122.1 MB in the beginning and 5.6 GB in the end (delta: -5.5 GB). Peak memory consumption was 2.2 GB. Max. memory is 8.0 GB. [2021-10-07 16:04:54,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 122.1 MB in the beginning and 122.1 MB in the end (delta: 96.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 342.62 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 114.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.57 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 112.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.06 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 110.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1057.84 ms. Allocated memory is still 151.0 MB. Free memory was 110.6 MB in the beginning and 122.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 780245.98 ms. Allocated memory was 151.0 MB in the beginning and 7.8 GB in the end (delta: 7.7 GB). Free memory was 122.1 MB in the beginning and 5.6 GB in the end (delta: -5.5 GB). Peak memory consumption was 2.2 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27506.4ms, 217 PlacesBefore, 90 PlacesAfterwards, 208 TransitionsBefore, 78 TransitionsAfterwards, 7588 CoEnabledTransitionPairs, 8 FixpointIterations, 83 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 201 TotalNumberOfCompositions, 26073 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11801, positive: 11436, positive conditional: 0, positive unconditional: 11436, negative: 365, negative conditional: 0, negative unconditional: 365, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5454, positive: 5371, positive conditional: 0, positive unconditional: 5371, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5454, positive: 5209, positive conditional: 0, positive unconditional: 5209, negative: 245, negative conditional: 0, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 245, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 550, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 419, negative conditional: 0, negative unconditional: 419, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11801, positive: 6065, positive conditional: 0, positive unconditional: 6065, negative: 282, negative conditional: 0, negative unconditional: 282, unknown: 5454, unknown conditional: 0, unknown unconditional: 5454] , Statistics on independence cache: Total cache size (in pairs): 612, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 125]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 125]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 125]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (14620states) and FLOYD_HOARE automaton (currently 42 states, 23 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 27 for 144ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 273 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 780049.3ms, OverallIterations: 47, TraceHistogramMax: 1, EmptinessCheckTime: 3447.8ms, AutomataDifference: 596308.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30569.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6464 SDtfs, 26602 SDslu, 55438 SDs, 0 SdLazy, 60292 SolverSat, 6705 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 257635.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4661 GetRequests, 2855 SyntacticMatches, 5 SemanticMatches, 1800 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42997 ImplicationChecksByTransitivity, 304322.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=49763occurred in iteration=0, InterpolantAutomatonStates: 1603, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56616.6ms AutomataMinimizationTime, 46 MinimizatonAttempts, 228642 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 690.8ms SsaConstructionTime, 3648.2ms SatisfiabilityAnalysisTime, 66041.2ms InterpolantComputationTime, 1763 NumberOfCodeBlocks, 1763 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 3432 ConstructedInterpolants, 22 QuantifiedInterpolants, 15240 SizeOfPredicates, 362 NumberOfNonLiveVariables, 6919 ConjunctsInSsa, 483 ConjunctsInUnsatCore, 94 InterpolantComputations, 94 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown