/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:58:40,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:58:40,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:58:40,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-06 04:58:40,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:58:40,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:58:40,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:58:40,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:58:40,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:58:40,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:58:40,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:58:40,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:58:40,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:58:40,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:58:40,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:58:40,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:58:40,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 04:58:40,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:58:40,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:58:40,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:58:40,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:58:40,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:58:40,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:58:40,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:58:40,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:58:40,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:58:40,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:58:40,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:58:40,909 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:58:40,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:58:40,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:58:40,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:58:40,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:58:40,931 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:58:40,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:58:40,932 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:58:40,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:58:40,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:58:40,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:58:40,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:58:40,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:58:40,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:58:40,933 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:58:40,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:58:40,945 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:58:40,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:58:40,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:58:40,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:58:40,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:58:40,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:58:40,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:58:41,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:58:41,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:58:41,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:58:41,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:58:41,314 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:58:41,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 04:58:42,560 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:58:42,783 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:58:42,784 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 04:58:42,799 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118b40405/6dafa571f398430081f4b87c63d1a764/FLAG0da19464d [2022-12-06 04:58:42,809 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/118b40405/6dafa571f398430081f4b87c63d1a764 [2022-12-06 04:58:42,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:58:42,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:58:42,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:58:42,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:58:42,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:58:42,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:42" (1/1) ... [2022-12-06 04:58:42,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720aebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:42, skipping insertion in model container [2022-12-06 04:58:42,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:58:42" (1/1) ... [2022-12-06 04:58:42,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:58:42,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:58:42,977 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-06 04:58:43,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:58:43,151 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:58:43,163 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_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-06 04:58:43,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:58:43,219 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:58:43,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43 WrapperNode [2022-12-06 04:58:43,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:58:43,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:58:43,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:58:43,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:58:43,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,261 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-06 04:58:43,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:58:43,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:58:43,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:58:43,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:58:43,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,279 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:58:43,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:58:43,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:58:43,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:58:43,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (1/1) ... [2022-12-06 04:58:43,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:58:43,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:58:43,312 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) [2022-12-06 04:58:43,320 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 [2022-12-06 04:58:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:58:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:58:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:58:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:58:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 04:58:43,350 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 04:58:43,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:58:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:58:43,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:58:43,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:58:43,352 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:58:43,449 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:58:43,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:58:43,645 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:58:43,650 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:58:43,651 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:58:43,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:43 BoogieIcfgContainer [2022-12-06 04:58:43,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:58:43,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:58:43,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:58:43,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:58:43,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:58:42" (1/3) ... [2022-12-06 04:58:43,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdf1959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:43, skipping insertion in model container [2022-12-06 04:58:43,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:58:43" (2/3) ... [2022-12-06 04:58:43,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdf1959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:58:43, skipping insertion in model container [2022-12-06 04:58:43,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:58:43" (3/3) ... [2022-12-06 04:58:43,669 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-06 04:58:43,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:58:43,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:58:43,684 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:58:43,726 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 04:58:43,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2022-12-06 04:58:43,816 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-12-06 04:58:43,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:43,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-12-06 04:58:43,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2022-12-06 04:58:43,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2022-12-06 04:58:43,824 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:58:43,839 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2022-12-06 04:58:43,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2022-12-06 04:58:43,859 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-12-06 04:58:43,859 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:43,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 04:58:43,861 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2022-12-06 04:58:43,861 INFO L188 LiptonReduction]: Number of co-enabled transitions 240 [2022-12-06 04:58:46,520 INFO L203 LiptonReduction]: Total number of compositions: 43 [2022-12-06 04:58:46,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:58:46,539 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=REPEATED_LIPTON_PN, 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;@547d32f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:58:46,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 04:58:46,543 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-06 04:58:46,543 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:58:46,543 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:58:46,543 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 04:58:46,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:58:46,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:58:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash 196294938, now seen corresponding path program 1 times [2022-12-06 04:58:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:58:46,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324170452] [2022-12-06 04:58:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:58:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:58:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:58:46,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 04:58:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:58:46,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 04:58:46,751 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 04:58:46,752 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 04:58:46,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 04:58:46,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:58:46,754 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 04:58:46,768 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:58:46,768 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:58:46,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:58:46 BasicIcfg [2022-12-06 04:58:46,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:58:46,789 INFO L158 Benchmark]: Toolchain (without parser) took 3975.10ms. Allocated memory was 181.4MB in the beginning and 226.5MB in the end (delta: 45.1MB). Free memory was 149.3MB in the beginning and 167.7MB in the end (delta: -18.4MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. [2022-12-06 04:58:46,790 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 181.4MB. Free memory is still 159.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:58:46,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.74ms. Allocated memory is still 181.4MB. Free memory was 148.9MB in the beginning and 130.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 04:58:46,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.02ms. Allocated memory is still 181.4MB. Free memory was 130.1MB in the beginning and 128.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:58:46,794 INFO L158 Benchmark]: Boogie Preprocessor took 19.83ms. Allocated memory is still 181.4MB. Free memory was 128.3MB in the beginning and 126.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:58:46,795 INFO L158 Benchmark]: RCFGBuilder took 369.75ms. Allocated memory is still 181.4MB. Free memory was 126.9MB in the beginning and 114.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 04:58:46,795 INFO L158 Benchmark]: TraceAbstraction took 3131.87ms. Allocated memory was 181.4MB in the beginning and 226.5MB in the end (delta: 45.1MB). Free memory was 114.1MB in the beginning and 167.7MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:58:46,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 181.4MB. Free memory is still 159.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 406.74ms. Allocated memory is still 181.4MB. Free memory was 148.9MB in the beginning and 130.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.02ms. Allocated memory is still 181.4MB. Free memory was 130.1MB in the beginning and 128.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.83ms. Allocated memory is still 181.4MB. Free memory was 128.3MB in the beginning and 126.9MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 369.75ms. Allocated memory is still 181.4MB. Free memory was 126.9MB in the beginning and 114.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3131.87ms. Allocated memory was 181.4MB in the beginning and 226.5MB in the end (delta: 45.1MB). Free memory was 114.1MB in the beginning and 167.7MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 178, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, independent: 145, independent conditional: 0, independent unconditional: 145, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 252, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: 694]: 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 3 procedures, 72 locations, 2 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: 3.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-06 04:58:46,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...