/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 19:03:08,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 19:03:08,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 19:03:08,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 19:03:08,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 19:03:08,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 19:03:08,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 19:03:08,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 19:03:08,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 19:03:08,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 19:03:08,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 19:03:08,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 19:03:08,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 19:03:08,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 19:03:08,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 19:03:08,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 19:03:08,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 19:03:08,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 19:03:08,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 19:03:08,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 19:03:08,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 19:03:08,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 19:03:08,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 19:03:08,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 19:03:08,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 19:03:08,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 19:03:08,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 19:03:08,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 19:03:08,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 19:03:08,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 19:03:08,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 19:03:08,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 19:03:08,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 19:03:08,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 19:03:08,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 19:03:08,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 19:03:08,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 19:03:08,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 19:03:08,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 19:03:08,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 19:03:08,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 19:03:08,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-12 19:03:08,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 19:03:08,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 19:03:08,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 19:03:08,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 19:03:08,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 19:03:08,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 19:03:08,849 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 19:03:08,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 19:03:08,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 19:03:08,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 19:03:08,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 19:03:08,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:03:08,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 19:03:08,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 19:03:08,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 19:03:08,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 19:03:08,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 19:03:08,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 19:03:08,853 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 19:03:09,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 19:03:09,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 19:03:09,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 19:03:09,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 19:03:09,209 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 19:03:09,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-12-12 19:03:10,402 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 19:03:10,725 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 19:03:10,725 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-12-12 19:03:10,741 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be7bc251/ab61adb6fb744cfc901105aa9afb14a9/FLAGcd6632c9f [2022-12-12 19:03:10,758 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be7bc251/ab61adb6fb744cfc901105aa9afb14a9 [2022-12-12 19:03:10,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 19:03:10,761 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 19:03:10,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 19:03:10,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 19:03:10,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 19:03:10,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:03:10" (1/1) ... [2022-12-12 19:03:10,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7627cdfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:10, skipping insertion in model container [2022-12-12 19:03:10,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 07:03:10" (1/1) ... [2022-12-12 19:03:10,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 19:03:10,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 19:03:10,979 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-12-12 19:03:11,255 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-12 19:03:11,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:03:11,267 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 19:03:11,276 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-12-12 19:03:11,306 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-12 19:03:11,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 19:03:11,372 INFO L208 MainTranslator]: Completed translation [2022-12-12 19:03:11,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11 WrapperNode [2022-12-12 19:03:11,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 19:03:11,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 19:03:11,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 19:03:11,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 19:03:11,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,440 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-12-12 19:03:11,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 19:03:11,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 19:03:11,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 19:03:11,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 19:03:11,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 19:03:11,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 19:03:11,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 19:03:11,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 19:03:11,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (1/1) ... [2022-12-12 19:03:11,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 19:03:11,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 19:03:11,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 19:03:11,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 19:03:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-12 19:03:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-12 19:03:11,568 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-12 19:03:11,568 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-12 19:03:11,569 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-12 19:03:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 19:03:11,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 19:03:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 19:03:11,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 19:03:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 19:03:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 19:03:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 19:03:11,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 19:03:11,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 19:03:11,572 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 19:03:11,923 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 19:03:11,925 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 19:03:12,107 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 19:03:12,116 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 19:03:12,116 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 19:03:12,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:03:12 BoogieIcfgContainer [2022-12-12 19:03:12,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 19:03:12,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 19:03:12,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 19:03:12,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 19:03:12,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 07:03:10" (1/3) ... [2022-12-12 19:03:12,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7cb66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:03:12, skipping insertion in model container [2022-12-12 19:03:12,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 07:03:11" (2/3) ... [2022-12-12 19:03:12,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7cb66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 07:03:12, skipping insertion in model container [2022-12-12 19:03:12,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 07:03:12" (3/3) ... [2022-12-12 19:03:12,125 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2022-12-12 19:03:12,140 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 19:03:12,140 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 19:03:12,140 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 19:03:12,208 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 19:03:12,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-12 19:03:12,274 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-12 19:03:12,274 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 19:03:12,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-12 19:03:12,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-12 19:03:12,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 66 transitions, 138 flow [2022-12-12 19:03:12,283 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 19:03:12,306 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 138 flow [2022-12-12 19:03:12,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 66 transitions, 138 flow [2022-12-12 19:03:12,339 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-12-12 19:03:12,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:03:12,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 19:03:12,341 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 138 flow [2022-12-12 19:03:12,342 INFO L226 LiptonReduction]: Number of co-enabled transitions 474 [2022-12-12 19:03:15,438 INFO L241 LiptonReduction]: Total number of compositions: 54 [2022-12-12 19:03:15,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 19:03:15,455 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d610669, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 19:03:15,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 19:03:15,459 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-12-12 19:03:15,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 19:03:15,459 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:03:15,460 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:03:15,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 19:03:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:03:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash 960240982, now seen corresponding path program 1 times [2022-12-12 19:03:15,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:03:15,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638014584] [2022-12-12 19:03:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:03:15,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:03:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:03:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:03:15,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:03:15,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638014584] [2022-12-12 19:03:15,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638014584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:03:15,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:03:15,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 19:03:15,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469335934] [2022-12-12 19:03:15,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:03:15,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 19:03:15,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:03:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 19:03:15,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 19:03:15,922 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 25 [2022-12-12 19:03:15,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:03:15,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:03:15,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 25 [2022-12-12 19:03:15,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:03:16,037 INFO L130 PetriNetUnfolder]: 93/251 cut-off events. [2022-12-12 19:03:16,037 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 19:03:16,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 251 events. 93/251 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1296 event pairs, 62 based on Foata normal form. 25/213 useless extension candidates. Maximal degree in co-relation 440. Up to 132 conditions per place. [2022-12-12 19:03:16,040 INFO L137 encePairwiseOnDemand]: 22/25 looper letters, 16 selfloop transitions, 2 changer transitions 16/39 dead transitions. [2022-12-12 19:03:16,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 153 flow [2022-12-12 19:03:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 19:03:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 19:03:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2022-12-12 19:03:16,051 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2022-12-12 19:03:16,054 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-12-12 19:03:16,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 39 transitions, 153 flow [2022-12-12 19:03:16,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 23 transitions, 91 flow [2022-12-12 19:03:16,057 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 91 flow [2022-12-12 19:03:16,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:03:16,057 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:03:16,057 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:03:16,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 19:03:16,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 19:03:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:03:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -231984200, now seen corresponding path program 1 times [2022-12-12 19:03:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:03:16,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111050555] [2022-12-12 19:03:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:03:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:03:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 19:03:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 19:03:16,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 19:03:16,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111050555] [2022-12-12 19:03:16,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111050555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 19:03:16,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 19:03:16,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 19:03:16,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665356168] [2022-12-12 19:03:16,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 19:03:16,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 19:03:16,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 19:03:16,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 19:03:16,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 19:03:16,199 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 25 [2022-12-12 19:03:16,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:03:16,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 19:03:16,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 25 [2022-12-12 19:03:16,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 19:03:16,246 INFO L130 PetriNetUnfolder]: 40/104 cut-off events. [2022-12-12 19:03:16,246 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-12 19:03:16,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 104 events. 40/104 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 346 event pairs, 6 based on Foata normal form. 18/102 useless extension candidates. Maximal degree in co-relation 290. Up to 72 conditions per place. [2022-12-12 19:03:16,252 INFO L137 encePairwiseOnDemand]: 18/25 looper letters, 21 selfloop transitions, 7 changer transitions 1/31 dead transitions. [2022-12-12 19:03:16,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 31 transitions, 187 flow [2022-12-12 19:03:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 19:03:16,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 19:03:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-12-12 19:03:16,256 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4266666666666667 [2022-12-12 19:03:16,256 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-12 19:03:16,257 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 31 transitions, 187 flow [2022-12-12 19:03:16,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 30 transitions, 181 flow [2022-12-12 19:03:16,258 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 30 transitions, 181 flow [2022-12-12 19:03:16,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 19:03:16,259 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 19:03:16,259 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 19:03:16,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 19:03:16,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 19:03:16,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 19:03:16,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1608107909, now seen corresponding path program 1 times [2022-12-12 19:03:16,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 19:03:16,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362387806] [2022-12-12 19:03:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 19:03:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 19:03:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:03:16,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 19:03:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 19:03:16,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 19:03:16,355 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 19:03:16,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 19:03:16,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 19:03:16,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 19:03:16,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-12 19:03:16,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 19:03:16,359 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-12 19:03:16,364 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 19:03:16,365 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 19:03:16,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 07:03:16 BasicIcfg [2022-12-12 19:03:16,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 19:03:16,410 INFO L158 Benchmark]: Toolchain (without parser) took 5646.40ms. Allocated memory was 177.2MB in the beginning and 229.6MB in the end (delta: 52.4MB). Free memory was 151.8MB in the beginning and 110.8MB in the end (delta: 41.0MB). Peak memory consumption was 94.2MB. Max. memory is 8.0GB. [2022-12-12 19:03:16,410 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 19:03:16,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.87ms. Allocated memory is still 177.2MB. Free memory was 151.5MB in the beginning and 113.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-12-12 19:03:16,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.36ms. Allocated memory is still 177.2MB. Free memory was 113.8MB in the beginning and 110.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 19:03:16,412 INFO L158 Benchmark]: Boogie Preprocessor took 42.58ms. Allocated memory is still 177.2MB. Free memory was 110.7MB in the beginning and 108.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 19:03:16,413 INFO L158 Benchmark]: RCFGBuilder took 633.89ms. Allocated memory is still 177.2MB. Free memory was 108.6MB in the beginning and 89.2MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 19:03:16,413 INFO L158 Benchmark]: TraceAbstraction took 4286.51ms. Allocated memory was 177.2MB in the beginning and 229.6MB in the end (delta: 52.4MB). Free memory was 88.1MB in the beginning and 110.8MB in the end (delta: -22.7MB). Peak memory consumption was 30.2MB. Max. memory is 8.0GB. [2022-12-12 19:03:16,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 153.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 607.87ms. Allocated memory is still 177.2MB. Free memory was 151.5MB in the beginning and 113.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.36ms. Allocated memory is still 177.2MB. Free memory was 113.8MB in the beginning and 110.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.58ms. Allocated memory is still 177.2MB. Free memory was 110.7MB in the beginning and 108.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 633.89ms. Allocated memory is still 177.2MB. Free memory was 108.6MB in the beginning and 89.2MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4286.51ms. Allocated memory was 177.2MB in the beginning and 229.6MB in the end (delta: 52.4MB). Free memory was 88.1MB in the beginning and 110.8MB in the end (delta: -22.7MB). Peak memory consumption was 30.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 73 PlacesBefore, 32 PlacesAfterwards, 66 TransitionsBefore, 25 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 560, independent: 523, independent conditional: 523, independent unconditional: 0, dependent: 37, dependent conditional: 37, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 560, independent: 523, independent conditional: 0, independent unconditional: 523, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 560, independent: 523, independent conditional: 0, independent unconditional: 523, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 560, independent: 523, independent conditional: 0, independent unconditional: 523, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 369, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 369, independent: 346, independent conditional: 0, independent unconditional: 346, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 98, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 560, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 369, unknown conditional: 0, unknown unconditional: 369] , Statistics on independence cache: Total cache size (in pairs): 579, Positive cache size: 563, Positive conditional cache size: 0, Positive unconditional cache size: 563, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}] [L1366] 2 g = 0 VAL [cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond={4:0}, cond=0, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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: 1377]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 118 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 68 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-12 19:03:16,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...