/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/popl20-queue-add-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 16:34:19,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 16:34:19,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 16:34:19,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 16:34:19,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 16:34:19,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 16:34:19,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 16:34:19,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 16:34:19,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 16:34:19,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 16:34:19,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 16:34:19,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 16:34:19,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 16:34:19,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 16:34:19,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 16:34:19,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 16:34:19,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-07 16:34:19,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 16:34:19,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 16:34:19,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 16:34:19,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 16:34:19,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 16:34:19,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 16:34:19,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 16:34:19,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 16:34:19,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 16:34:19,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 16:34:19,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 16:34:19,741 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 16:34:19,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 16:34:19,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 16:34:19,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 16:34:19,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 16:34:19,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 16:34:19,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 16:34:19,806 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 16:34:19,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 16:34:19,807 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 16:34:19,807 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 16:34:19,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 16:34:19,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 16:34:19,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 16:34:19,809 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 16:34:19,809 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 16:34:19,809 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 16:34:19,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 16:34:19,810 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 16:34:19,810 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 16:34:19,810 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 16:34:19,810 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 16:34:19,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 16:34:19,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 16:34:19,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 16:34:19,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 16:34:19,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 16:34:19,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 16:34:19,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 16:34:19,812 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 16:34:19,812 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 16:34:19,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 16:34:19,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 16:34:19,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 16:34:20,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 16:34:20,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 16:34:20,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 16:34:20,269 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 16:34:20,270 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 16:34:20,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2021-10-07 16:34:20,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18243fe3d/7e4c73532ccf4aceb7ec736e34d0993a/FLAG406b49819 [2021-10-07 16:34:21,054 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 16:34:21,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2021-10-07 16:34:21,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18243fe3d/7e4c73532ccf4aceb7ec736e34d0993a/FLAG406b49819 [2021-10-07 16:34:21,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18243fe3d/7e4c73532ccf4aceb7ec736e34d0993a [2021-10-07 16:34:21,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 16:34:21,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 16:34:21,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 16:34:21,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 16:34:21,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 16:34:21,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b5e79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21, skipping insertion in model container [2021-10-07 16:34:21,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 16:34:21,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 16:34:21,683 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/popl20-queue-add-3.wvr.c[3405,3418] [2021-10-07 16:34:21,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 16:34:21,722 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-07 16:34:21,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 16:34:21,776 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/popl20-queue-add-3.wvr.c[3405,3418] [2021-10-07 16:34:21,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 16:34:21,787 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 16:34:21,817 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/popl20-queue-add-3.wvr.c[3405,3418] [2021-10-07 16:34:21,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 16:34:21,841 INFO L208 MainTranslator]: Completed translation [2021-10-07 16:34:21,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21 WrapperNode [2021-10-07 16:34:21,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 16:34:21,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 16:34:21,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 16:34:21,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 16:34:21,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 16:34:21,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 16:34:21,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 16:34:21,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 16:34:21,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 16:34:21,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 16:34:21,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 16:34:21,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 16:34:21,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (1/1) ... [2021-10-07 16:34:21,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 16:34:21,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 16:34:22,002 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 16:34:22,010 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 16:34:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 16:34:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 16:34:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 16:34:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 16:34:22,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 16:34:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 16:34:22,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 16:34:22,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 16:34:22,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 16:34:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-07 16:34:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-07 16:34:22,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 16:34:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 16:34:22,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 16:34:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 16:34:22,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 16:34:22,080 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 16:34:23,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 16:34:23,713 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-10-07 16:34:23,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:34:23 BoogieIcfgContainer [2021-10-07 16:34:23,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 16:34:23,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 16:34:23,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 16:34:23,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 16:34:23,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 04:34:21" (1/3) ... [2021-10-07 16:34:23,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e1463b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:34:23, skipping insertion in model container [2021-10-07 16:34:23,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 04:34:21" (2/3) ... [2021-10-07 16:34:23,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e1463b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 04:34:23, skipping insertion in model container [2021-10-07 16:34:23,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 04:34:23" (3/3) ... [2021-10-07 16:34:23,725 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-3.wvr.c [2021-10-07 16:34:23,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 16:34:23,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-10-07 16:34:23,732 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 16:34:23,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,775 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,776 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,777 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,777 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,778 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,778 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,778 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,779 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,779 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,780 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,780 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,781 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,781 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,782 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,782 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,783 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,783 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,783 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,784 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,784 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,785 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,786 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,787 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,790 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,791 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,795 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,795 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,795 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,797 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,797 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,797 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,797 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,797 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,798 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,798 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,798 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,799 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,799 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,799 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,800 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,800 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,800 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,800 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,800 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,801 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,801 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,801 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,804 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,805 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,806 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,806 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,812 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,812 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,812 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,813 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 16:34:23,819 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 16:34:23,867 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 16:34:23,876 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 16:34:23,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-10-07 16:34:23,916 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 16:34:23,930 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 214 transitions, 452 flow [2021-10-07 16:34:23,938 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 214 transitions, 452 flow [2021-10-07 16:34:23,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 214 transitions, 452 flow [2021-10-07 16:34:24,025 INFO L129 PetriNetUnfolder]: 18/211 cut-off events. [2021-10-07 16:34:24,026 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 16:34:24,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 211 events. 18/211 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 227 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2021-10-07 16:34:24,037 INFO L116 LiptonReduction]: Number of co-enabled transitions 2700 [2021-10-07 16:35:00,726 INFO L131 LiptonReduction]: Checked pairs total: 4586 [2021-10-07 16:35:00,726 INFO L133 LiptonReduction]: Total number of compositions: 226 [2021-10-07 16:35:00,736 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 59 transitions, 142 flow [2021-10-07 16:35:00,837 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1565 states, 1237 states have (on average 4.568310428455942) internal successors, (5651), 1564 states have internal predecessors, (5651), 0 states have call successors, (0), 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 16:35:00,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 1565 states, 1237 states have (on average 4.568310428455942) internal successors, (5651), 1564 states have internal predecessors, (5651), 0 states have call successors, (0), 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 16:35:00,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 16:35:00,851 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:35:00,851 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 16:35:00,852 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:35:00,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:35:00,859 INFO L82 PathProgramCache]: Analyzing trace with hash 31509, now seen corresponding path program 1 times [2021-10-07 16:35:00,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:35:00,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291610428] [2021-10-07 16:35:00,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:35:00,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:35:00,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:35:00,881 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 16:35:00,896 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 16:35:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:35:00,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 16:35:00,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:35:01,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:35:01,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:35:01,438 INFO L354 Elim1Store]: treesize reduction 229, result has 22.6 percent of original size [2021-10-07 16:35:01,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 74 [2021-10-07 16:35:01,557 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 16:35:01,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:35:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:35:01,702 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:35:01,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291610428] [2021-10-07 16:35:01,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291610428] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:35:01,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:35:01,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 16:35:01,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671645539] [2021-10-07 16:35:01,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 16:35:01,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:35:01,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 16:35:01,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:35:01,735 INFO L87 Difference]: Start difference. First operand has 1565 states, 1237 states have (on average 4.568310428455942) internal successors, (5651), 1564 states have internal predecessors, (5651), 0 states have call successors, (0), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:35:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:35:02,605 INFO L93 Difference]: Finished difference Result 3129 states and 10929 transitions. [2021-10-07 16:35:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 16:35:02,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-07 16:35:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:35:02,665 INFO L225 Difference]: With dead ends: 3129 [2021-10-07 16:35:02,665 INFO L226 Difference]: Without dead ends: 3129 [2021-10-07 16:35:02,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 100.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:35:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2021-10-07 16:35:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 1568. [2021-10-07 16:35:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1241 states have (on average 4.4141821112006445) internal successors, (5478), 1567 states have internal predecessors, (5478), 0 states have call successors, (0), 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 16:35:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 5478 transitions. [2021-10-07 16:35:02,864 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 5478 transitions. Word has length 2 [2021-10-07 16:35:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:35:02,865 INFO L470 AbstractCegarLoop]: Abstraction has 1568 states and 5478 transitions. [2021-10-07 16:35:02,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:35:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 5478 transitions. [2021-10-07 16:35:02,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 16:35:02,867 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:35:02,867 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 16:35:02,881 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 16:35:03,079 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 16:35:03,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:35:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:35:03,081 INFO L82 PathProgramCache]: Analyzing trace with hash 31511, now seen corresponding path program 1 times [2021-10-07 16:35:03,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:35:03,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941721755] [2021-10-07 16:35:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:35:03,083 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:35:03,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:35:03,087 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 16:35:03,101 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 16:35:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:35:03,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 16:35:03,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:35:03,417 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-10-07 16:35:03,417 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 6 case distinctions, treesize of input 24 treesize of output 70 [2021-10-07 16:35:04,090 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 16:35:04,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:35:04,095 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 16:35:04,096 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:35:04,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941721755] [2021-10-07 16:35:04,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941721755] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:35:04,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:35:04,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 16:35:04,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992453377] [2021-10-07 16:35:04,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 16:35:04,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:35:04,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 16:35:04,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 16:35:04,100 INFO L87 Difference]: Start difference. First operand 1568 states and 5478 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 16:35:04,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:35:04,342 INFO L93 Difference]: Finished difference Result 1566 states and 5472 transitions. [2021-10-07 16:35:04,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 16:35:04,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2021-10-07 16:35:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:35:04,363 INFO L225 Difference]: With dead ends: 1566 [2021-10-07 16:35:04,364 INFO L226 Difference]: Without dead ends: 1566 [2021-10-07 16:35:04,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 16:35:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2021-10-07 16:35:04,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1566. [2021-10-07 16:35:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1241 states have (on average 4.409347300564061) internal successors, (5472), 1565 states have internal predecessors, (5472), 0 states have call successors, (0), 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 16:35:04,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 5472 transitions. [2021-10-07 16:35:04,443 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 5472 transitions. Word has length 2 [2021-10-07 16:35:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:35:04,444 INFO L470 AbstractCegarLoop]: Abstraction has 1566 states and 5472 transitions. [2021-10-07 16:35:04,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 16:35:04,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 5472 transitions. [2021-10-07 16:35:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 16:35:04,445 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:35:04,445 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 16:35:04,463 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 16:35:04,662 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 16:35:04,666 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:35:04,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:35:04,667 INFO L82 PathProgramCache]: Analyzing trace with hash 982041, now seen corresponding path program 1 times [2021-10-07 16:35:04,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:35:04,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070339162] [2021-10-07 16:35:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:35:04,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:35:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:35:04,671 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 16:35:04,708 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 16:35:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:35:04,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-07 16:35:04,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:35:05,086 INFO L354 Elim1Store]: treesize reduction 361, result has 14.7 percent of original size [2021-10-07 16:35:05,087 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 9 case distinctions, treesize of input 198 treesize of output 236 [2021-10-07 16:35:14,618 INFO L354 Elim1Store]: treesize reduction 186, result has 38.4 percent of original size [2021-10-07 16:35:14,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 117 treesize of output 217 [2021-10-07 16:35:42,895 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 16:35:42,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:35:42,933 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 16:35:42,934 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:35:42,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070339162] [2021-10-07 16:35:42,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070339162] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:35:42,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:35:42,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 1] imperfect sequences [] total 3 [2021-10-07 16:35:42,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656299562] [2021-10-07 16:35:42,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 16:35:42,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:35:42,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 16:35:42,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=0, Total=20 [2021-10-07 16:35:42,937 INFO L87 Difference]: Start difference. First operand 1566 states and 5472 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 16:35:48,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:35:48,428 INFO L93 Difference]: Finished difference Result 1285 states and 4349 transitions. [2021-10-07 16:35:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 16:35:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 16:35:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:35:48,444 INFO L225 Difference]: With dead ends: 1285 [2021-10-07 16:35:48,444 INFO L226 Difference]: Without dead ends: 1285 [2021-10-07 16:35:48,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8348.5ms TimeCoverageRelationStatistics Valid=14, Invalid=12, Unknown=4, NotChecked=0, Total=30 [2021-10-07 16:35:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2021-10-07 16:35:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1285. [2021-10-07 16:35:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1036 states have (on average 4.197876447876448) internal successors, (4349), 1284 states have internal predecessors, (4349), 0 states have call successors, (0), 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 16:35:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 4349 transitions. [2021-10-07 16:35:48,500 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 4349 transitions. Word has length 3 [2021-10-07 16:35:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:35:48,501 INFO L470 AbstractCegarLoop]: Abstraction has 1285 states and 4349 transitions. [2021-10-07 16:35:48,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 16:35:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 4349 transitions. [2021-10-07 16:35:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-07 16:35:48,501 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:35:48,502 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-07 16:35:48,517 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 16:35:48,714 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 16:35:48,715 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:35:48,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:35:48,717 INFO L82 PathProgramCache]: Analyzing trace with hash 982042, now seen corresponding path program 1 times [2021-10-07 16:35:48,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:35:48,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008460351] [2021-10-07 16:35:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:35:48,719 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:35:48,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:35:48,720 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 16:35:48,731 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 16:35:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:35:48,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 16:35:48,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:35:49,214 INFO L354 Elim1Store]: treesize reduction 245, result has 17.2 percent of original size [2021-10-07 16:35:49,215 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 5 case distinctions, treesize of input 69 treesize of output 103 [2021-10-07 16:35:49,227 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-07 16:35:49,228 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 197 treesize of output 191 [2021-10-07 16:35:52,289 INFO L354 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2021-10-07 16:35:52,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 99 [2021-10-07 16:36:00,246 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 16:36:00,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:36:00,385 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 16:36:00,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:36:00,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008460351] [2021-10-07 16:36:00,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008460351] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:36:00,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:36:00,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-07 16:36:00,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077564264] [2021-10-07 16:36:00,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 16:36:00,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:36:00,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 16:36:00,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=17, Unknown=1, NotChecked=0, Total=30 [2021-10-07 16:36:00,388 INFO L87 Difference]: Start difference. First operand 1285 states and 4349 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 16:36:07,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:36:07,915 INFO L93 Difference]: Finished difference Result 1004 states and 3226 transitions. [2021-10-07 16:36:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 16:36:07,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 16:36:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:36:07,929 INFO L225 Difference]: With dead ends: 1004 [2021-10-07 16:36:07,929 INFO L226 Difference]: Without dead ends: 1004 [2021-10-07 16:36:07,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2433.3ms TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-07 16:36:07,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2021-10-07 16:36:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2021-10-07 16:36:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 831 states have (on average 3.882069795427196) internal successors, (3226), 1003 states have internal predecessors, (3226), 0 states have call successors, (0), 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 16:36:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3226 transitions. [2021-10-07 16:36:07,975 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3226 transitions. Word has length 3 [2021-10-07 16:36:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:36:07,976 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3226 transitions. [2021-10-07 16:36:07,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 16:36:07,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3226 transitions. [2021-10-07 16:36:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 16:36:07,976 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:36:07,977 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 16:36:07,995 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 16:36:08,189 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 16:36:08,190 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:36:08,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:36:08,191 INFO L82 PathProgramCache]: Analyzing trace with hash 30389685, now seen corresponding path program 1 times [2021-10-07 16:36:08,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:36:08,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938475948] [2021-10-07 16:36:08,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:36:08,192 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:36:08,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:36:08,194 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 16:36:08,199 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 16:36:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:36:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 16:36:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:36:08,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:36:08,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:36:08,558 INFO L354 Elim1Store]: treesize reduction 229, result has 22.6 percent of original size [2021-10-07 16:36:08,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 23 treesize of output 74 [2021-10-07 16:36:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:36:08,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:36:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 16:36:09,173 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:36:09,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938475948] [2021-10-07 16:36:09,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938475948] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-07 16:36:09,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 16:36:09,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-07 16:36:09,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887681882] [2021-10-07 16:36:09,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 16:36:09,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:36:09,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 16:36:09,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 16:36:09,175 INFO L87 Difference]: Start difference. First operand 1004 states and 3226 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:36:14,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:36:14,797 INFO L93 Difference]: Finished difference Result 5987 states and 19297 transitions. [2021-10-07 16:36:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 16:36:14,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-07 16:36:14,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:36:14,868 INFO L225 Difference]: With dead ends: 5987 [2021-10-07 16:36:14,868 INFO L226 Difference]: Without dead ends: 5987 [2021-10-07 16:36:14,870 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 911.6ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-07 16:36:14,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2021-10-07 16:36:14,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 1012. [2021-10-07 16:36:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 839 states have (on average 3.864123957091776) internal successors, (3242), 1011 states have internal predecessors, (3242), 0 states have call successors, (0), 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 16:36:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 3242 transitions. [2021-10-07 16:36:14,980 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 3242 transitions. Word has length 4 [2021-10-07 16:36:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:36:14,981 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 3242 transitions. [2021-10-07 16:36:14,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:36:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 3242 transitions. [2021-10-07 16:36:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 16:36:14,982 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:36:14,982 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 16:36:14,999 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 16:36:15,195 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 16:36:15,196 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:36:15,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:36:15,196 INFO L82 PathProgramCache]: Analyzing trace with hash 943763920, now seen corresponding path program 1 times [2021-10-07 16:36:15,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:36:15,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968794769] [2021-10-07 16:36:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:36:15,197 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:36:15,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:36:15,198 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 16:36:15,204 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 16:36:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:36:15,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 16:36:15,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:36:15,629 INFO L354 Elim1Store]: treesize reduction 239, result has 19.3 percent of original size [2021-10-07 16:36:15,630 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 5 case distinctions, treesize of input 48 treesize of output 88 [2021-10-07 16:36:15,637 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 115 treesize of output 113 [2021-10-07 16:36:17,856 INFO L354 Elim1Store]: treesize reduction 84, result has 36.8 percent of original size [2021-10-07 16:36:17,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 95 [2021-10-07 16:36:32,881 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 16:36:32,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:36:33,039 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 16:36:33,040 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:36:33,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968794769] [2021-10-07 16:36:33,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968794769] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:36:33,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:36:33,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-07 16:36:33,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659518120] [2021-10-07 16:36:33,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 16:36:33,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:36:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 16:36:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=17, Unknown=1, NotChecked=0, Total=30 [2021-10-07 16:36:33,042 INFO L87 Difference]: Start difference. First operand 1012 states and 3242 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:36:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:36:42,388 INFO L93 Difference]: Finished difference Result 965 states and 3108 transitions. [2021-10-07 16:36:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 16:36:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-07 16:36:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:36:42,396 INFO L225 Difference]: With dead ends: 965 [2021-10-07 16:36:42,397 INFO L226 Difference]: Without dead ends: 965 [2021-10-07 16:36:42,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4235.6ms TimeCoverageRelationStatistics Valid=18, Invalid=23, Unknown=1, NotChecked=0, Total=42 [2021-10-07 16:36:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2021-10-07 16:36:42,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2021-10-07 16:36:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 812 states have (on average 3.8275862068965516) internal successors, (3108), 964 states have internal predecessors, (3108), 0 states have call successors, (0), 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 16:36:42,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 3108 transitions. [2021-10-07 16:36:42,436 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 3108 transitions. Word has length 5 [2021-10-07 16:36:42,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:36:42,437 INFO L470 AbstractCegarLoop]: Abstraction has 965 states and 3108 transitions. [2021-10-07 16:36:42,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:36:42,437 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 3108 transitions. [2021-10-07 16:36:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-07 16:36:42,438 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:36:42,438 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-07 16:36:42,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-07 16:36:42,650 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 16:36:42,654 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:36:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:36:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 943763922, now seen corresponding path program 1 times [2021-10-07 16:36:42,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:36:42,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082851825] [2021-10-07 16:36:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:36:42,656 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:36:42,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:36:42,659 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 16:36:42,667 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 16:36:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:36:42,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-07 16:36:42,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:36:43,014 INFO L354 Elim1Store]: treesize reduction 356, result has 14.2 percent of original size [2021-10-07 16:36:43,014 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 7 case distinctions, treesize of input 84 treesize of output 121 [2021-10-07 16:36:44,458 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-10-07 16:36:44,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 45 [2021-10-07 16:36:44,631 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 16:36:44,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:36:44,671 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 16:36:44,671 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:36:44,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082851825] [2021-10-07 16:36:44,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082851825] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:36:44,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:36:44,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 16:36:44,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335815170] [2021-10-07 16:36:44,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 16:36:44,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:36:44,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 16:36:44,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:36:44,673 INFO L87 Difference]: Start difference. First operand 965 states and 3108 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 16:36:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:36:44,863 INFO L93 Difference]: Finished difference Result 918 states and 2974 transitions. [2021-10-07 16:36:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 16:36:44,865 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 16:36:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:36:44,871 INFO L225 Difference]: With dead ends: 918 [2021-10-07 16:36:44,871 INFO L226 Difference]: Without dead ends: 918 [2021-10-07 16:36:44,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 89.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 16:36:44,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2021-10-07 16:36:44,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2021-10-07 16:36:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 785 states have (on average 3.788535031847134) internal successors, (2974), 917 states have internal predecessors, (2974), 0 states have call successors, (0), 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 16:36:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 2974 transitions. [2021-10-07 16:36:44,923 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 2974 transitions. Word has length 5 [2021-10-07 16:36:44,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:36:44,923 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 2974 transitions. [2021-10-07 16:36:44,923 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 16:36:44,923 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 2974 transitions. [2021-10-07 16:36:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 16:36:44,924 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:36:44,924 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 16:36:44,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-07 16:36:45,136 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 16:36:45,137 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:36:45,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:36:45,139 INFO L82 PathProgramCache]: Analyzing trace with hash -808095898, now seen corresponding path program 1 times [2021-10-07 16:36:45,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:36:45,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998767209] [2021-10-07 16:36:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:36:45,140 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:36:45,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:36:45,141 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 16:36:45,142 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 16:36:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:36:45,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-07 16:36:45,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:36:45,296 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 16:36:45,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:36:45,341 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 16:36:45,341 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:36:45,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998767209] [2021-10-07 16:36:45,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998767209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:36:45,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:36:45,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-07 16:36:45,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498806516] [2021-10-07 16:36:45,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 16:36:45,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:36:45,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 16:36:45,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 16:36:45,344 INFO L87 Difference]: Start difference. First operand 918 states and 2974 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:36:45,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:36:45,613 INFO L93 Difference]: Finished difference Result 987 states and 3128 transitions. [2021-10-07 16:36:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 16:36:45,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-07 16:36:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:36:45,628 INFO L225 Difference]: With dead ends: 987 [2021-10-07 16:36:45,629 INFO L226 Difference]: Without dead ends: 979 [2021-10-07 16:36:45,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-07 16:36:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2021-10-07 16:36:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 978. [2021-10-07 16:36:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 841 states have (on average 3.6956004756242566) internal successors, (3108), 977 states have internal predecessors, (3108), 0 states have call successors, (0), 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 16:36:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 3108 transitions. [2021-10-07 16:36:45,664 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 3108 transitions. Word has length 6 [2021-10-07 16:36:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:36:45,664 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 3108 transitions. [2021-10-07 16:36:45,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 16:36:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 3108 transitions. [2021-10-07 16:36:45,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 16:36:45,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:36:45,665 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:36:45,678 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 16:36:45,878 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 16:36:45,880 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:36:45,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:36:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash -843516229, now seen corresponding path program 1 times [2021-10-07 16:36:45,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:36:45,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713351185] [2021-10-07 16:36:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:36:45,882 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:36:45,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:36:45,884 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 16:36:45,916 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 16:36:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:36:46,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-07 16:36:46,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:36:46,251 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-10-07 16:36:46,252 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 6 case distinctions, treesize of input 24 treesize of output 70 [2021-10-07 16:36:46,819 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-07 16:36:46,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-10-07 16:36:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 16:36:46,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 16:36:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-07 16:36:46,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:36:46,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713351185] [2021-10-07 16:36:46,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713351185] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 16:36:46,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:36:46,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 3 [2021-10-07 16:36:46,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846637135] [2021-10-07 16:36:46,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 16:36:46,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 16:36:46,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 16:36:46,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 16:36:46,905 INFO L87 Difference]: Start difference. First operand 978 states and 3108 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 16:36:47,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 16:36:47,113 INFO L93 Difference]: Finished difference Result 670 states and 2083 transitions. [2021-10-07 16:36:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 16:36:47,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 7 [2021-10-07 16:36:47,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 16:36:47,117 INFO L225 Difference]: With dead ends: 670 [2021-10-07 16:36:47,117 INFO L226 Difference]: Without dead ends: 670 [2021-10-07 16:36:47,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 16:36:47,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-10-07 16:36:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2021-10-07 16:36:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 598 states have (on average 3.483277591973244) internal successors, (2083), 669 states have internal predecessors, (2083), 0 states have call successors, (0), 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 16:36:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2083 transitions. [2021-10-07 16:36:47,141 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2083 transitions. Word has length 7 [2021-10-07 16:36:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 16:36:47,142 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 2083 transitions. [2021-10-07 16:36:47,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 16:36:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2083 transitions. [2021-10-07 16:36:47,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-07 16:36:47,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 16:36:47,143 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-07 16:36:47,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-07 16:36:47,358 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 16:36:47,359 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION, thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION (and 37 more)] === [2021-10-07 16:36:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 16:36:47,360 INFO L82 PathProgramCache]: Analyzing trace with hash -843516227, now seen corresponding path program 1 times [2021-10-07 16:36:47,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 16:36:47,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310026403] [2021-10-07 16:36:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:36:47,361 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 16:36:47,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 16:36:47,362 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 16:36:47,364 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 16:36:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:36:47,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-07 16:36:47,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:36:47,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:36:47,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:36:47,799 INFO L354 Elim1Store]: treesize reduction 229, result has 22.6 percent of original size [2021-10-07 16:36:47,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 98 [2021-10-07 16:36:48,075 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-10-07 16:36:48,076 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 6 case distinctions, treesize of input 98 treesize of output 143 [2021-10-07 16:37:02,092 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 16:37:02,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310026403] [2021-10-07 16:37:02,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-10-07 16:37:02,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [584458041] [2021-10-07 16:37:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:37:02,093 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-07 16:37:02,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 [2021-10-07 16:37:02,095 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-07 16:37:02,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-07 16:37:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:37:02,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-07 16:37:02,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:37:02,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:37:02,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:37:02,670 INFO L354 Elim1Store]: treesize reduction 229, result has 22.6 percent of original size [2021-10-07 16:37:02,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 98 [2021-10-07 16:37:02,935 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-10-07 16:37:02,936 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 6 case distinctions, treesize of input 98 treesize of output 143 [2021-10-07 16:37:16,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-10-07 16:37:16,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908386095] [2021-10-07 16:37:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 16:37:16,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-07 16:37:16,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 16:37:16,525 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-07 16:37:16,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-07 16:37:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 16:37:16,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-07 16:37:16,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 16:37:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:37:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 16:37:16,998 INFO L354 Elim1Store]: treesize reduction 229, result has 22.6 percent of original size [2021-10-07 16:37:16,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 98 [2021-10-07 16:37:17,280 INFO L354 Elim1Store]: treesize reduction 350, result has 15.7 percent of original size [2021-10-07 16:37:17,280 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 6 case distinctions, treesize of input 98 treesize of output 143 [2021-10-07 16:37:31,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-10-07 16:37:31,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-07 16:37:31,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-07 16:37:31,165 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-07 16:37:31,165 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-07 16:37:31,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 16:37:31,172 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 16:37:31,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 16:37:31,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 16:37:31,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 16:37:31,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 16:37:31,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 16:37:31,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 16:37:31,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 16:37:31,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 16:37:31,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 16:37:31,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 16:37:31,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 16:37:31,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-07 16:37:31,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-07 16:37:31,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 16:37:31,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 16:37:31,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 16:37:31,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 16:37:31,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 16:37:31,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 16:37:31,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATION [2021-10-07 16:37:31,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATION [2021-10-07 16:37:31,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-07 16:37:31,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-07 16:37:31,604 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 16:37:31,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 16:37:31,803 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 16:37:31,803 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 16:37:31,805 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transformations.BlockEncodingBacktranslator.translateProgramExecution(BlockEncodingBacktranslator.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:589) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-07 16:37:31,808 INFO L168 Benchmark]: Toolchain (without parser) took 190432.84 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 131.9 MB in the beginning and 73.8 MB in the end (delta: 58.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 8.0 GB. [2021-10-07 16:37:31,808 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 128.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 16:37:31,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.30 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 117.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-07 16:37:31,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 157.3 MB. Free memory was 117.6 MB in the beginning and 115.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-07 16:37:31,809 INFO L168 Benchmark]: Boogie Preprocessor took 47.85 ms. Allocated memory is still 157.3 MB. Free memory was 115.3 MB in the beginning and 113.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 16:37:31,809 INFO L168 Benchmark]: RCFGBuilder took 1764.16 ms. Allocated memory is still 157.3 MB. Free memory was 113.2 MB in the beginning and 101.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-10-07 16:37:31,810 INFO L168 Benchmark]: TraceAbstraction took 188089.04 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 100.4 MB in the beginning and 73.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. [2021-10-07 16:37:31,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 128.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 456.30 ms. Allocated memory is still 157.3 MB. Free memory was 131.4 MB in the beginning and 117.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 157.3 MB. Free memory was 117.6 MB in the beginning and 115.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.85 ms. Allocated memory is still 157.3 MB. Free memory was 115.3 MB in the beginning and 113.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1764.16 ms. Allocated memory is still 157.3 MB. Free memory was 113.2 MB in the beginning and 101.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 188089.04 ms. Allocated memory was 157.3 MB in the beginning and 188.7 MB in the end (delta: 31.5 MB). Free memory was 100.4 MB in the beginning and 73.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36788.1ms, 206 PlacesBefore, 63 PlacesAfterwards, 214 TransitionsBefore, 59 TransitionsAfterwards, 2700 CoEnabledTransitionPairs, 7 FixpointIterations, 131 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 9 ConcurrentYvCompositions, 12 ChoiceCompositions, 226 TotalNumberOfCompositions, 4586 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3522, positive: 3450, positive conditional: 0, positive unconditional: 3450, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1595, positive: 1570, positive conditional: 0, positive unconditional: 1570, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1595, positive: 1556, positive conditional: 0, positive unconditional: 1556, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3769, positive: 2723, positive conditional: 0, positive unconditional: 2723, negative: 1046, negative conditional: 0, negative unconditional: 1046, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3522, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 1595, unknown conditional: 0, unknown unconditional: 1595] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 191, Positive conditional cache size: 0, Positive unconditional cache size: 191, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - 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 - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transformations.BlockEncodingBacktranslator.translateProgramExecution(BlockEncodingBacktranslator.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-07 16:37:31,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...