/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:41:52,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:41:52,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:41:52,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:41:52,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:41:52,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:41:52,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:41:52,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:41:52,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:41:52,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:41:52,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:41:52,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:41:52,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:41:52,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:41:52,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:41:52,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:41:52,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:41:52,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:41:52,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:41:52,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:41:52,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:41:52,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:41:52,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:41:52,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:41:52,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 01:41:52,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:41:52,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:41:52,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:41:52,185 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-RepeatedSemanticLbe.epf [2022-12-06 01:41:52,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:41:52,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:41:52,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:41:52,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:41:52,210 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:41:52,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:41:52,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:41:52,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:41:52,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:41:52,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:41:52,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:41:52,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:41:52,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:41:52,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:41:52,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:41:52,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:41:52,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:41:52,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:41:52,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:41:52,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:41:52,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:41:52,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:41:52,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:41:52,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:41:52,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:41:52,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:41:52,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:41:52,495 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:41:52,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-06 01:41:53,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:41:53,823 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:41:53,823 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-06 01:41:53,833 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/202eef27d/c7c4d56a601a42d797657b8e749b9daf/FLAGe07d1176e [2022-12-06 01:41:53,844 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/202eef27d/c7c4d56a601a42d797657b8e749b9daf [2022-12-06 01:41:53,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:41:53,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:41:53,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:41:53,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:41:53,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:41:53,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:41:53" (1/1) ... [2022-12-06 01:41:53,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549fb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:53, skipping insertion in model container [2022-12-06 01:41:53,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:41:53" (1/1) ... [2022-12-06 01:41:53,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:41:53,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:41:54,015 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-06 01:41:54,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:41:54,142 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:41:54,151 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-12-06 01:41:54,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:41:54,205 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:41:54,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54 WrapperNode [2022-12-06 01:41:54,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:41:54,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:41:54,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:41:54,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:41:54,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,251 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-06 01:41:54,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:41:54,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:41:54,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:41:54,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:41:54,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:41:54,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:41:54,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:41:54,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:41:54,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (1/1) ... [2022-12-06 01:41:54,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:41:54,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:41:54,316 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 01:41:54,348 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 01:41:54,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:41:54,361 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 01:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 01:41:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 01:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:41:54,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:41:54,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:41:54,363 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 01:41:54,441 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:41:54,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:41:54,617 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:41:54,621 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:41:54,621 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:41:54,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:41:54 BoogieIcfgContainer [2022-12-06 01:41:54,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:41:54,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:41:54,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:41:54,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:41:54,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:41:53" (1/3) ... [2022-12-06 01:41:54,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef4ae50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:41:54, skipping insertion in model container [2022-12-06 01:41:54,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:54" (2/3) ... [2022-12-06 01:41:54,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef4ae50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:41:54, skipping insertion in model container [2022-12-06 01:41:54,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:41:54" (3/3) ... [2022-12-06 01:41:54,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-12-06 01:41:54,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:41:54,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:41:54,649 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:41:54,703 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 01:41:54,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 01:41:54,770 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-06 01:41:54,770 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:54,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2022-12-06 01:41:54,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 01:41:54,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:54,777 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:54,792 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:54,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:54,828 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-12-06 01:41:54,828 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:54,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 1/61 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. 0/60 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-06 01:41:54,830 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:54,830 INFO L188 LiptonReduction]: Number of co-enabled transitions 360 [2022-12-06 01:41:57,185 INFO L203 LiptonReduction]: Total number of compositions: 48 [2022-12-06 01:41:57,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:41:57,206 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;@1a13fcae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:41:57,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 01:41:57,209 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-06 01:41:57,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:57,209 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:57,209 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 01:41:57,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:57,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:57,214 INFO L85 PathProgramCache]: Analyzing trace with hash 232260389, now seen corresponding path program 1 times [2022-12-06 01:41:57,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:57,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51587634] [2022-12-06 01:41:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:41:57,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 01:41:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:41:57,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 01:41:57,327 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 01:41:57,328 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 01:41:57,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 01:41:57,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:41:57,330 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 01:41:57,333 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:41:57,333 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:41:57,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:41:57 BasicIcfg [2022-12-06 01:41:57,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:41:57,346 INFO L158 Benchmark]: Toolchain (without parser) took 3499.52ms. Allocated memory was 197.1MB in the beginning and 250.6MB in the end (delta: 53.5MB). Free memory was 171.6MB in the beginning and 127.2MB in the end (delta: 44.4MB). Peak memory consumption was 98.5MB. Max. memory is 8.0GB. [2022-12-06 01:41:57,346 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:41:57,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.94ms. Allocated memory is still 197.1MB. Free memory was 171.6MB in the beginning and 152.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 01:41:57,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.71ms. Allocated memory is still 197.1MB. Free memory was 152.8MB in the beginning and 150.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:41:57,347 INFO L158 Benchmark]: Boogie Preprocessor took 23.51ms. Allocated memory is still 197.1MB. Free memory was 150.7MB in the beginning and 149.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 01:41:57,348 INFO L158 Benchmark]: RCFGBuilder took 347.12ms. Allocated memory is still 197.1MB. Free memory was 149.1MB in the beginning and 135.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 01:41:57,348 INFO L158 Benchmark]: TraceAbstraction took 2721.26ms. Allocated memory was 197.1MB in the beginning and 250.6MB in the end (delta: 53.5MB). Free memory was 134.9MB in the beginning and 127.2MB in the end (delta: 7.7MB). Peak memory consumption was 61.8MB. Max. memory is 8.0GB. [2022-12-06 01:41:57,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 173.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 356.94ms. Allocated memory is still 197.1MB. Free memory was 171.6MB in the beginning and 152.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.71ms. Allocated memory is still 197.1MB. Free memory was 152.8MB in the beginning and 150.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.51ms. Allocated memory is still 197.1MB. Free memory was 150.7MB in the beginning and 149.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 347.12ms. Allocated memory is still 197.1MB. Free memory was 149.1MB in the beginning and 135.5MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2721.26ms. Allocated memory was 197.1MB in the beginning and 250.6MB in the end (delta: 53.5MB). Free memory was 134.9MB in the beginning and 127.2MB in the end (delta: 7.7MB). Peak memory consumption was 61.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 64 PlacesBefore, 19 PlacesAfterwards, 61 TransitionsBefore, 16 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 16 ConcurrentYvCompositions, 0 ChoiceCompositions, 48 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 373, independent: 324, independent conditional: 324, independent unconditional: 0, dependent: 49, dependent conditional: 49, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 373, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 373, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 373, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 265, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 265, independent: 221, independent conditional: 0, independent unconditional: 221, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 373, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 265, unknown conditional: 0, unknown unconditional: 265] , Statistics on independence cache: Total cache size (in pairs): 366, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, 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: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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, 83 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: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 0.0s 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 01:41:57,393 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...