/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../sv-benchmarks/c/weaver/parallel-min-max-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 15:47:33,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 15:47:33,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 15:47:33,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 15:47:33,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-07 15:47:33,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-07 15:47:33,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-07 15:47:33,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-07 15:47:33,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-07 15:47:33,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-07 15:47:33,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-07 15:47:33,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-07 15:47:33,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-07 15:47:33,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-07 15:47:33,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-07 15:47:33,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-07 15:47:33,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-07 15:47:33,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-07 15:47:33,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-07 15:47:33,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-07 15:47:33,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-07 15:47:33,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-07 15:47:33,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-07 15:47:33,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-07 15:47:33,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-07 15:47:33,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 15:47:33,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 15:47:33,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 15:47:33,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-07 15:47:33,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 15:47:33,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 15:47:33,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 15:47:33,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 15:47:33,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 15:47:33,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 15:47:33,985 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 15:47:33,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 15:47:33,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 15:47:33,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 15:47:33,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 15:47:33,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 15:47:33,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 15:47:33,988 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-07 15:47:33,988 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-07 15:47:33,988 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-07 15:47:33,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 15:47:33,989 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-07 15:47:33,989 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-07 15:47:33,989 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-07 15:47:33,989 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 15:47:33,989 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 15:47:33,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 15:47:33,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 15:47:33,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 15:47:33,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:47:33,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 15:47:33,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 15:47:33,991 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-07 15:47:33,991 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-07 15:47:33,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 15:47:33,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-07 15:47:33,992 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 15:47:34,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 15:47:34,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 15:47:34,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 15:47:34,482 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 15:47:34,483 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 15:47:34,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-min-max-2.wvr.c [2021-10-07 15:47:34,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac00656e0/f48360c10e7b4cff9d5a41294c6f2eee/FLAGd3f9b1c56 [2021-10-07 15:47:35,341 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 15:47:35,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-2.wvr.c [2021-10-07 15:47:35,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac00656e0/f48360c10e7b4cff9d5a41294c6f2eee/FLAGd3f9b1c56 [2021-10-07 15:47:35,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac00656e0/f48360c10e7b4cff9d5a41294c6f2eee [2021-10-07 15:47:35,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 15:47:35,658 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-07 15:47:35,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 15:47:35,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 15:47:35,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 15:47:35,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:47:35" (1/1) ... [2021-10-07 15:47:35,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea34b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:35, skipping insertion in model container [2021-10-07 15:47:35,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:47:35" (1/1) ... [2021-10-07 15:47:35,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 15:47:35,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:47:35,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-2.wvr.c[3154,3167] [2021-10-07 15:47:35,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:47:35,956 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-07 15:47:35,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 15:47:36,010 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-2.wvr.c[3154,3167] [2021-10-07 15:47:36,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:47:36,028 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 15:47:36,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-2.wvr.c[3154,3167] [2021-10-07 15:47:36,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 15:47:36,090 INFO L208 MainTranslator]: Completed translation [2021-10-07 15:47:36,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36 WrapperNode [2021-10-07 15:47:36,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 15:47:36,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 15:47:36,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 15:47:36,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 15:47:36,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 15:47:36,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 15:47:36,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 15:47:36,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 15:47:36,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 15:47:36,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 15:47:36,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 15:47:36,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 15:47:36,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (1/1) ... [2021-10-07 15:47:36,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 15:47:36,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 15:47:36,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 15:47:36,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 15:47:36,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-07 15:47:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 15:47:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-07 15:47:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 15:47:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 15:47:36,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 15:47:36,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 15:47:36,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 15:47:36,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 15:47:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-07 15:47:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-07 15:47:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-10-07 15:47:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-10-07 15:47:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-07 15:47:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 15:47:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 15:47:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 15:47:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-07 15:47:36,354 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 15:47:37,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 15:47:37,577 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-07 15:47:37,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:47:37 BoogieIcfgContainer [2021-10-07 15:47:37,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 15:47:37,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 15:47:37,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 15:47:37,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 15:47:37,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:47:35" (1/3) ... [2021-10-07 15:47:37,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e67c777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:47:37, skipping insertion in model container [2021-10-07 15:47:37,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:47:36" (2/3) ... [2021-10-07 15:47:37,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e67c777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:47:37, skipping insertion in model container [2021-10-07 15:47:37,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:47:37" (3/3) ... [2021-10-07 15:47:37,591 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-min-max-2.wvr.c [2021-10-07 15:47:37,597 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 15:47:37,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-10-07 15:47:37,598 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 15:47:37,678 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,681 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,681 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,681 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,681 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,682 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,682 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,689 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,693 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,694 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,695 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,696 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,697 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,698 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,699 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,700 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,701 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,701 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,702 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,703 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,704 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,705 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,706 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,707 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,709 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,709 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,710 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,710 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,710 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,711 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,711 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,712 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,713 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,713 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,714 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,715 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,715 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,716 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,725 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,738 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,739 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,743 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,743 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,752 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,752 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,753 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 15:47:37,767 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-10-07 15:47:37,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 15:47:37,857 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-07 15:47:37,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-10-07 15:47:37,891 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 15:47:37,909 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 261 transitions, 562 flow [2021-10-07 15:47:37,912 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 261 transitions, 562 flow [2021-10-07 15:47:37,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 261 transitions, 562 flow [2021-10-07 15:47:38,103 INFO L129 PetriNetUnfolder]: 16/256 cut-off events. [2021-10-07 15:47:38,104 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-07 15:47:38,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 256 events. 16/256 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 420 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2021-10-07 15:47:38,127 INFO L116 LiptonReduction]: Number of co-enabled transitions 10238 [2021-10-07 15:48:17,970 WARN L207 SmtUtils]: Spent 7.27 s on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2021-10-07 15:48:27,304 WARN L207 SmtUtils]: Spent 7.78 s on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2021-10-07 15:48:29,015 INFO L131 LiptonReduction]: Checked pairs total: 24456 [2021-10-07 15:48:29,016 INFO L133 LiptonReduction]: Total number of compositions: 254 [2021-10-07 15:48:29,033 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 104 places, 95 transitions, 230 flow [2021-10-07 15:48:35,875 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 110394 states, 103250 states have (on average 5.573510895883778) internal successors, (575465), 110393 states have internal predecessors, (575465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:48:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 110394 states, 103250 states have (on average 5.573510895883778) internal successors, (575465), 110393 states have internal predecessors, (575465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:48:36,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:48:36,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:36,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:48:36,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:48:36,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:36,606 INFO L82 PathProgramCache]: Analyzing trace with hash 30578, now seen corresponding path program 1 times [2021-10-07 15:48:36,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:36,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958061058] [2021-10-07 15:48:36,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:48:36,622 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:36,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:36,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:48:36,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-07 15:48:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:48:36,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-07 15:48:36,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:36,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:48:37,619 INFO L354 Elim1Store]: treesize reduction 492, result has 16.5 percent of original size [2021-10-07 15:48:37,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 29 treesize of output 104 [2021-10-07 15:48:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:37,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:37,859 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:37,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958061058] [2021-10-07 15:48:37,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958061058] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:37,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:37,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:48:37,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584573852] [2021-10-07 15:48:37,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:48:37,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:37,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:48:37,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:48:38,115 INFO L87 Difference]: Start difference. First operand has 110394 states, 103250 states have (on average 5.573510895883778) internal successors, (575465), 110393 states have internal predecessors, (575465), 0 states have call successors, (0), 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 15:48:41,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:41,986 INFO L93 Difference]: Finished difference Result 83410 states and 433651 transitions. [2021-10-07 15:48:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:48:41,989 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 15:48:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:43,969 INFO L225 Difference]: With dead ends: 83410 [2021-10-07 15:48:43,969 INFO L226 Difference]: Without dead ends: 83410 [2021-10-07 15:48:43,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:48:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83410 states. [2021-10-07 15:48:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83410 to 41707. [2021-10-07 15:48:48,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41707 states, 40252 states have (on average 5.386912451555202) internal successors, (216834), 41706 states have internal predecessors, (216834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:48:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41707 states to 41707 states and 216834 transitions. [2021-10-07 15:48:49,027 INFO L78 Accepts]: Start accepts. Automaton has 41707 states and 216834 transitions. Word has length 2 [2021-10-07 15:48:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:49,028 INFO L470 AbstractCegarLoop]: Abstraction has 41707 states and 216834 transitions. [2021-10-07 15:48:49,028 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 15:48:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand 41707 states and 216834 transitions. [2021-10-07 15:48:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:48:49,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:49,029 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:48:49,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:49,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:48:49,239 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:48:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:49,241 INFO L82 PathProgramCache]: Analyzing trace with hash 30579, now seen corresponding path program 1 times [2021-10-07 15:48:49,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:49,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388724127] [2021-10-07 15:48:49,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:48:49,244 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:49,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:49,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:48:49,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-07 15:48:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:48:49,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-07 15:48:49,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:49,479 INFO L354 Elim1Store]: treesize reduction 245, result has 14.3 percent of original size [2021-10-07 15:48:49,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 46 [2021-10-07 15:48:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:49,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:48:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:48:49,547 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:48:49,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388724127] [2021-10-07 15:48:49,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388724127] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:48:49,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:48:49,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-10-07 15:48:49,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185283255] [2021-10-07 15:48:49,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 15:48:49,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:48:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 15:48:49,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:48:49,551 INFO L87 Difference]: Start difference. First operand 41707 states and 216834 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 15:48:51,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:48:51,781 INFO L93 Difference]: Finished difference Result 41706 states and 216831 transitions. [2021-10-07 15:48:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:48:51,784 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 15:48:51,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:48:52,899 INFO L225 Difference]: With dead ends: 41706 [2021-10-07 15:48:52,900 INFO L226 Difference]: Without dead ends: 41706 [2021-10-07 15:48:52,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 15:48:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41706 states. [2021-10-07 15:48:55,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41706 to 41706. [2021-10-07 15:48:55,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41706 states, 40252 states have (on average 5.386837921097088) internal successors, (216831), 41705 states have internal predecessors, (216831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:48:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41706 states to 41706 states and 216831 transitions. [2021-10-07 15:48:55,903 INFO L78 Accepts]: Start accepts. Automaton has 41706 states and 216831 transitions. Word has length 2 [2021-10-07 15:48:55,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:48:55,903 INFO L470 AbstractCegarLoop]: Abstraction has 41706 states and 216831 transitions. [2021-10-07 15:48:55,903 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 15:48:55,904 INFO L276 IsEmpty]: Start isEmpty. Operand 41706 states and 216831 transitions. [2021-10-07 15:48:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:48:55,904 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:48:55,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:48:55,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-07 15:48:56,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:48:56,106 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:48:56,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:48:56,107 INFO L82 PathProgramCache]: Analyzing trace with hash 30741, now seen corresponding path program 1 times [2021-10-07 15:48:56,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:48:56,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671631794] [2021-10-07 15:48:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:48:56,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:48:56,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:48:56,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:48:56,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-07 15:48:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:48:56,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-07 15:48:56,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:48:57,207 INFO L354 Elim1Store]: treesize reduction 496, result has 15.8 percent of original size [2021-10-07 15:48:57,207 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 7 case distinctions, treesize of input 95 treesize of output 165 [2021-10-07 15:48:57,233 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-10-07 15:48:57,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 175 treesize of output 167 [2021-10-07 15:49:07,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:07,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:07,099 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:07,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671631794] [2021-10-07 15:49:07,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671631794] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:07,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:07,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:49:07,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765193625] [2021-10-07 15:49:07,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:49:07,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:07,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:49:07,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:49:07,102 INFO L87 Difference]: Start difference. First operand 41706 states and 216831 transitions. 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 15:49:08,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:08,352 INFO L93 Difference]: Finished difference Result 35655 states and 182453 transitions. [2021-10-07 15:49:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:49:08,354 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 15:49:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:08,682 INFO L225 Difference]: With dead ends: 35655 [2021-10-07 15:49:08,682 INFO L226 Difference]: Without dead ends: 35655 [2021-10-07 15:49:08,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:49:08,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35655 states. [2021-10-07 15:49:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35655 to 35655. [2021-10-07 15:49:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35655 states, 34427 states have (on average 5.299706625613617) internal successors, (182453), 35654 states have internal predecessors, (182453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:49:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35655 states to 35655 states and 182453 transitions. [2021-10-07 15:49:10,879 INFO L78 Accepts]: Start accepts. Automaton has 35655 states and 182453 transitions. Word has length 2 [2021-10-07 15:49:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:10,879 INFO L470 AbstractCegarLoop]: Abstraction has 35655 states and 182453 transitions. [2021-10-07 15:49:10,879 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 15:49:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 35655 states and 182453 transitions. [2021-10-07 15:49:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-07 15:49:10,880 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:10,880 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-07 15:49:10,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:11,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:49:11,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:49:11,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:11,083 INFO L82 PathProgramCache]: Analyzing trace with hash 30742, now seen corresponding path program 1 times [2021-10-07 15:49:11,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:11,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530528089] [2021-10-07 15:49:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:49:11,084 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:11,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:11,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:49:11,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-07 15:49:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:49:11,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-07 15:49:11,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:11,825 INFO L354 Elim1Store]: treesize reduction 293, result has 12.3 percent of original size [2021-10-07 15:49:11,826 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 15 case distinctions, treesize of input 91 treesize of output 107 [2021-10-07 15:49:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:12,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:12,151 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:12,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530528089] [2021-10-07 15:49:12,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530528089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:12,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:12,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-07 15:49:12,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149357580] [2021-10-07 15:49:12,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:49:12,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:12,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:49:12,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:49:12,154 INFO L87 Difference]: Start difference. First operand 35655 states and 182453 transitions. 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 15:49:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:12,877 INFO L93 Difference]: Finished difference Result 29604 states and 148075 transitions. [2021-10-07 15:49:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 15:49:12,878 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 15:49:12,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:13,093 INFO L225 Difference]: With dead ends: 29604 [2021-10-07 15:49:13,094 INFO L226 Difference]: Without dead ends: 29604 [2021-10-07 15:49:13,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:49:13,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29604 states. [2021-10-07 15:49:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29604 to 29604. [2021-10-07 15:49:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29604 states, 28602 states have (on average 5.17708551849521) internal successors, (148075), 29603 states have internal predecessors, (148075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:49:15,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29604 states to 29604 states and 148075 transitions. [2021-10-07 15:49:15,044 INFO L78 Accepts]: Start accepts. Automaton has 29604 states and 148075 transitions. Word has length 2 [2021-10-07 15:49:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:15,045 INFO L470 AbstractCegarLoop]: Abstraction has 29604 states and 148075 transitions. [2021-10-07 15:49:15,045 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 15:49:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 29604 states and 148075 transitions. [2021-10-07 15:49:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:49:15,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:15,045 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-07 15:49:15,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:15,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:49:15,246 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:49:15,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:15,248 INFO L82 PathProgramCache]: Analyzing trace with hash 29533650, now seen corresponding path program 1 times [2021-10-07 15:49:15,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:15,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285225653] [2021-10-07 15:49:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:49:15,249 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:15,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:15,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:49:15,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-07 15:49:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:49:15,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-07 15:49:15,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:15,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-07 15:49:15,897 INFO L354 Elim1Store]: treesize reduction 492, result has 16.5 percent of original size [2021-10-07 15:49:15,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 29 treesize of output 104 [2021-10-07 15:49:16,081 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 15:49:16,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:16,504 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 15:49:16,505 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:16,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285225653] [2021-10-07 15:49:16,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285225653] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-07 15:49:16,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-07 15:49:16,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-07 15:49:16,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116905466] [2021-10-07 15:49:16,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:49:16,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:49:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:49:16,508 INFO L87 Difference]: Start difference. First operand 29604 states and 148075 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 15:49:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:22,870 INFO L93 Difference]: Finished difference Result 177603 states and 888418 transitions. [2021-10-07 15:49:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 15:49:22,872 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 15:49:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:26,005 INFO L225 Difference]: With dead ends: 177603 [2021-10-07 15:49:26,006 INFO L226 Difference]: Without dead ends: 177603 [2021-10-07 15:49:26,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 849.5ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:49:26,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177603 states. [2021-10-07 15:49:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177603 to 29608. [2021-10-07 15:49:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29608 states, 28606 states have (on average 5.176641264070475) internal successors, (148083), 29607 states have internal predecessors, (148083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:49:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29608 states to 29608 states and 148083 transitions. [2021-10-07 15:49:31,323 INFO L78 Accepts]: Start accepts. Automaton has 29608 states and 148083 transitions. Word has length 4 [2021-10-07 15:49:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:31,324 INFO L470 AbstractCegarLoop]: Abstraction has 29608 states and 148083 transitions. [2021-10-07 15:49:31,324 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 15:49:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 29608 states and 148083 transitions. [2021-10-07 15:49:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:49:31,324 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:31,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 15:49:31,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:31,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:49:31,526 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:49:31,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:31,527 INFO L82 PathProgramCache]: Analyzing trace with hash 29565190, now seen corresponding path program 1 times [2021-10-07 15:49:31,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:31,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803484553] [2021-10-07 15:49:31,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:49:31,528 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:31,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:31,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:49:31,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-07 15:49:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:49:31,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-07 15:49:31,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-07 15:49:31,769 INFO L354 Elim1Store]: treesize reduction 245, result has 14.3 percent of original size [2021-10-07 15:49:31,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 46 [2021-10-07 15:49:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:31,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-07 15:49:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:49:31,844 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-07 15:49:31,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803484553] [2021-10-07 15:49:31,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803484553] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-07 15:49:31,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:49:31,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-07 15:49:31,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366940393] [2021-10-07 15:49:31,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:49:31,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-07 15:49:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:49:31,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:49:31,847 INFO L87 Difference]: Start difference. First operand 29608 states and 148083 transitions. 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 15:49:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:49:33,082 INFO L93 Difference]: Finished difference Result 13356 states and 66607 transitions. [2021-10-07 15:49:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-07 15:49:33,083 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 4 [2021-10-07 15:49:33,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:49:33,186 INFO L225 Difference]: With dead ends: 13356 [2021-10-07 15:49:33,186 INFO L226 Difference]: Without dead ends: 13356 [2021-10-07 15:49:33,187 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:49:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2021-10-07 15:49:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 13356. [2021-10-07 15:49:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13356 states, 13149 states have (on average 5.065556316069663) internal successors, (66607), 13355 states have internal predecessors, (66607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:49:33,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13356 states to 13356 states and 66607 transitions. [2021-10-07 15:49:33,649 INFO L78 Accepts]: Start accepts. Automaton has 13356 states and 66607 transitions. Word has length 4 [2021-10-07 15:49:33,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:49:33,649 INFO L470 AbstractCegarLoop]: Abstraction has 13356 states and 66607 transitions. [2021-10-07 15:49:33,649 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 15:49:33,650 INFO L276 IsEmpty]: Start isEmpty. Operand 13356 states and 66607 transitions. [2021-10-07 15:49:33,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-07 15:49:33,650 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:49:33,650 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-07 15:49:33,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-07 15:49:33,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:49:33,857 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1REQUIRES_VIOLATION === [thread1Err0REQUIRES_VIOLATION, thread1Err1REQUIRES_VIOLATION, thread1Err2REQUIRES_VIOLATION, thread1Err3REQUIRES_VIOLATION (and 65 more)] === [2021-10-07 15:49:33,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:49:33,858 INFO L82 PathProgramCache]: Analyzing trace with hash 29565191, now seen corresponding path program 1 times [2021-10-07 15:49:33,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-07 15:49:33,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622402699] [2021-10-07 15:49:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:49:33,860 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-07 15:49:33,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat [2021-10-07 15:49:33,861 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-07 15:49:33,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-07 15:49:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:49:33,952 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-07 15:49:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-07 15:49:34,107 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-07 15:49:34,108 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-07 15:49:34,113 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,119 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,121 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,122 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4REQUIRES_VIOLATION [2021-10-07 15:49:34,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5REQUIRES_VIOLATION [2021-10-07 15:49:34,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,124 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,126 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 15:49:34,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 15:49:34,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,127 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-07 15:49:34,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-07 15:49:34,128 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-07 15:49:34,129 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-07 15:49:34,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-07 15:49:34,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-07 15:49:34,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-07 15:49:34,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-07 15:49:34,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-07 15:49:34,133 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-07 15:49:34,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-07 15:49:34,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-07 15:49:34,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-07 15:49:34,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-07 15:49:34,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-07 15:49:34,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-07 15:49:34,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-07 15:49:34,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-07 15:49:34,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-07 15:49:34,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-07 15:49:34,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-07 15:49:34,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-07 15:49:34,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:49:34,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-07 15:49:34,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:49:34,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:49:34,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:49:34,144 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-07 15:49:34,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATION [2021-10-07 15:49:34,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,145 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,147 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4REQUIRES_VIOLATION [2021-10-07 15:49:34,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5REQUIRES_VIOLATION [2021-10-07 15:49:34,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4REQUIRES_VIOLATION [2021-10-07 15:49:34,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5REQUIRES_VIOLATION [2021-10-07 15:49:34,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0REQUIRES_VIOLATION [2021-10-07 15:49:34,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1REQUIRES_VIOLATION [2021-10-07 15:49:34,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2REQUIRES_VIOLATION [2021-10-07 15:49:34,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3REQUIRES_VIOLATION [2021-10-07 15:49:34,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-07 15:49:34,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-10-07 15:49:34,382 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:49:34,382 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:49:34,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:49:34 BasicIcfg [2021-10-07 15:49:34,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:49:34,432 INFO L168 Benchmark]: Toolchain (without parser) took 118779.76 ms. Allocated memory was 159.4 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 133.7 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-10-07 15:49:34,441 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 159.4 MB. Free memory was 130.1 MB in the beginning and 130.0 MB in the end (delta: 98.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:49:34,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.53 ms. Allocated memory is still 159.4 MB. Free memory was 133.3 MB in the beginning and 119.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:49:34,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.32 ms. Allocated memory is still 159.4 MB. Free memory was 118.9 MB in the beginning and 117.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:49:34,443 INFO L168 Benchmark]: Boogie Preprocessor took 81.71 ms. Allocated memory is still 159.4 MB. Free memory was 117.0 MB in the beginning and 115.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:49:34,444 INFO L168 Benchmark]: RCFGBuilder took 1346.90 ms. Allocated memory is still 159.4 MB. Free memory was 115.0 MB in the beginning and 126.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2021-10-07 15:49:34,445 INFO L168 Benchmark]: TraceAbstraction took 116848.02 ms. Allocated memory was 159.4 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 125.9 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-10-07 15:49:34,451 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 159.4 MB. Free memory was 130.1 MB in the beginning and 130.0 MB in the end (delta: 98.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 431.53 ms. Allocated memory is still 159.4 MB. Free memory was 133.3 MB in the beginning and 119.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.32 ms. Allocated memory is still 159.4 MB. Free memory was 118.9 MB in the beginning and 117.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 81.71 ms. Allocated memory is still 159.4 MB. Free memory was 117.0 MB in the beginning and 115.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1346.90 ms. Allocated memory is still 159.4 MB. Free memory was 115.0 MB in the beginning and 126.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 116848.02 ms. Allocated memory was 159.4 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 125.9 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51104.4ms, 261 PlacesBefore, 104 PlacesAfterwards, 261 TransitionsBefore, 95 TransitionsAfterwards, 10238 CoEnabledTransitionPairs, 8 FixpointIterations, 115 TrivialSequentialCompositions, 100 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 18 ConcurrentYvCompositions, 9 ChoiceCompositions, 254 TotalNumberOfCompositions, 24456 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12645, positive: 12360, positive conditional: 0, positive unconditional: 12360, negative: 285, negative conditional: 0, negative unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6007, positive: 5929, positive conditional: 0, positive unconditional: 5929, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6007, positive: 5923, positive conditional: 0, positive unconditional: 5923, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4768, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4757, negative conditional: 0, negative unconditional: 4757, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12645, positive: 6431, positive conditional: 0, positive unconditional: 6431, negative: 207, negative conditional: 0, negative unconditional: 207, unknown: 6007, unknown conditional: 0, unknown unconditional: 6007] , Statistics on independence cache: Total cache size (in pairs): 665, Positive cache size: 638, Positive conditional cache size: 0, Positive unconditional cache size: 638, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - 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 - CounterExampleResult [Line: 48]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L41] 0 int* A; [L42] 0 int min, max, i, j, k, l, N; [L43] 0 _Bool v_assert, b1, b2; [L94] 0 pthread_t t1, t2, t3, t4, t5; [L97] 0 min = __VERIFIER_nondet_int() [L98] 0 max = __VERIFIER_nondet_int() [L99] 0 i = __VERIFIER_nondet_int() [L100] 0 j = __VERIFIER_nondet_int() [L101] 0 k = __VERIFIER_nondet_int() [L102] 0 l = __VERIFIER_nondet_int() [L103] 0 N = __VERIFIER_nondet_int() [L104] 0 b1 = __VERIFIER_nondet_bool() [L105] 0 b2 = __VERIFIER_nondet_bool() [L106] 0 v_assert = __VERIFIER_nondet_bool() [L38] COND FALSE 0 !(!cond) [L38] COND FALSE 0 !(!cond) [L133] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L134] 0 int i = 0; VAL [A={0:0}, N=0] [L134] COND FALSE 0 !(i < size) [L137] 0 return arr; [L107] 0 A = create_fresh_int_array(N) [L38] COND FALSE 0 !(!cond) [L112] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [A={1:0}, b1=0, b2=0, i=0, j=0, k=0, l=0, N=0, v_assert=0] [L48] 1 A[0] - UnprovableResult [Line: 48]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 59]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 135]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 135]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 114]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 114]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 117]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 117]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 118]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 118]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 120]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 120]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 121]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 121]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 124]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 114]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 80]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 327 locations, 69 error locations. Started 1 CEGAR loops. OverallTime: 116534.3ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 724.6ms, AutomataDifference: 22814.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 58017.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 293 SDtfs, 1816 SDslu, 325 SDs, 0 SdLazy, 659 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4769.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1080.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=110394occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17964.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 189698 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 74.0ms SsaConstructionTime, 278.1ms SatisfiabilityAnalysisTime, 14257.4ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 20 ConstructedInterpolants, 2 QuantifiedInterpolants, 487 SizeOfPredicates, 48 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-07 15:49:34,526 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...