/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_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:41:49,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:41:49,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:41:50,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:41:50,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:41:50,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:41:50,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:41:50,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:41:50,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:41:50,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:41:50,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:41:50,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:41:50,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:41:50,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:41:50,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:41:50,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:41:50,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:41:50,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:41:50,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:41:50,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:41:50,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:41:50,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:41:50,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:41:50,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:41:50,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 01:41:50,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 01:41:50,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 01:41:50,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 01:41:50,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 01:41:50,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-06 01:41:50,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:41:50,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:41:50,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:41:50,067 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 01:41:50,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:41:50,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:41:50,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:41:50,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:41:50,097 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:41:50,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:41:50,098 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:41:50,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:41:50,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:41:50,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:41:50,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:41:50,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:41:50,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:41:50,099 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:41:50,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:41:50,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:41:50,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:41:50,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:41:50,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:41:50,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:41:50,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:41:50,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:41:50,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:41:50,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:41:50,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:41:50,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:41:50,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:41:50,435 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:41:50,436 INFO L432 ainManager$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_neg.i [2022-12-06 01:41:51,483 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:41:51,821 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:41:51,821 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-06 01:41:51,832 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2e37dbb/e1534e6dd9794d9facd6295759971b06/FLAGaba65dafb [2022-12-06 01:41:51,849 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2e37dbb/e1534e6dd9794d9facd6295759971b06 [2022-12-06 01:41:51,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:41:51,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:41:51,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:41:51,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:41:51,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:41:51,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:41:51" (1/1) ... [2022-12-06 01:41:51,857 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 01:41:51, skipping insertion in model container [2022-12-06 01:41:51,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:41:51" (1/1) ... [2022-12-06 01:41:51,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:41:51,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:41:52,025 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_neg.i[1098,1111] [2022-12-06 01:41:52,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:41:52,170 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:41:52,181 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_neg.i[1098,1111] [2022-12-06 01:41:52,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:41:52,252 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:41:52,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52 WrapperNode [2022-12-06 01:41:52,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:41:52,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:41:52,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:41:52,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:41:52,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,299 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-12-06 01:41:52,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:41:52,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:41:52,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:41:52,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:41:52,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,327 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:41:52,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:41:52,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:41:52,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:41:52,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (1/1) ... [2022-12-06 01:41:52,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:41:52,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:41:52,351 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 01:41:52,370 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 01:41:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:41:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 01:41:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:41:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:41:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 01:41:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 01:41:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:41:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:41:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:41:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:41:52,384 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 01:41:52,519 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:41:52,520 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:41:52,673 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:41:52,678 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:41:52,678 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:41:52,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:41:52 BoogieIcfgContainer [2022-12-06 01:41:52,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:41:52,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:41:52,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:41:52,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:41:52,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:41:51" (1/3) ... [2022-12-06 01:41:52,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244306a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:41:52, skipping insertion in model container [2022-12-06 01:41:52,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:41:52" (2/3) ... [2022-12-06 01:41:52,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244306a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:41:52, skipping insertion in model container [2022-12-06 01:41:52,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:41:52" (3/3) ... [2022-12-06 01:41:52,684 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-12-06 01:41:52,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:41:52,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:41:52,697 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:41:52,745 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 01:41:52,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 01:41:52,812 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2022-12-06 01:41:52,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:52,816 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 01:41:52,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 72 transitions, 149 flow [2022-12-06 01:41:52,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:52,822 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:52,838 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:52,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:52,872 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-12-06 01:41:52,872 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:52,872 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 01:41:52,873 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 61 transitions, 125 flow [2022-12-06 01:41:52,874 INFO L188 LiptonReduction]: Number of co-enabled transitions 360 [2022-12-06 01:41:55,640 INFO L203 LiptonReduction]: Total number of compositions: 50 [2022-12-06 01:41:55,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:41:55,663 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;@309cab8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:41:55,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 01:41:55,665 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-06 01:41:55,665 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:55,665 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:55,666 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 01:41:55,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:55,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash 7522086, now seen corresponding path program 1 times [2022-12-06 01:41:55,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:55,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660717741] [2022-12-06 01:41:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:55,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:41:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:41:55,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:41:55,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660717741] [2022-12-06 01:41:55,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660717741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:41:55,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:41:55,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 01:41:55,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431424075] [2022-12-06 01:41:55,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:41:55,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:41:55,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:41:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:41:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:41:55,918 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 15 [2022-12-06 01:41:55,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-06 01:41:55,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:41:55,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 15 [2022-12-06 01:41:55,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:41:55,955 INFO L130 PetriNetUnfolder]: 18/65 cut-off events. [2022-12-06 01:41:55,955 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:41:55,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 65 events. 18/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 194 event pairs, 10 based on Foata normal form. 2/62 useless extension candidates. Maximal degree in co-relation 114. Up to 33 conditions per place. [2022-12-06 01:41:55,956 INFO L137 encePairwiseOnDemand]: 10/15 looper letters, 13 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2022-12-06 01:41:55,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 19 transitions, 73 flow [2022-12-06 01:41:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:41:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:41:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2022-12-06 01:41:55,966 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-06 01:41:55,969 INFO L294 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2022-12-06 01:41:55,970 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:41:55,970 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 19 transitions, 73 flow [2022-12-06 01:41:55,980 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 19 transitions, 73 flow [2022-12-06 01:41:55,980 INFO L188 LiptonReduction]: Number of co-enabled transitions 32 [2022-12-06 01:41:56,084 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 01:41:56,087 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 118 [2022-12-06 01:41:56,090 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 17 transitions, 69 flow [2022-12-06 01:41:56,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-06 01:41:56,090 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:41:56,090 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 01:41:56,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:41:56,091 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:41:56,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:41:56,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1361233195, now seen corresponding path program 1 times [2022-12-06 01:41:56,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:41:56,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989751205] [2022-12-06 01:41:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:41:56,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:41:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:41:56,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 01:41:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:41:56,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 01:41:56,150 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 01:41:56,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 01:41:56,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 01:41:56,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 01:41:56,152 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-06 01:41:56,156 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:41:56,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:41:56,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:41:56 BasicIcfg [2022-12-06 01:41:56,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:41:56,170 INFO L158 Benchmark]: Toolchain (without parser) took 4318.46ms. Allocated memory was 186.6MB in the beginning and 265.3MB in the end (delta: 78.6MB). Free memory was 160.6MB in the beginning and 126.8MB in the end (delta: 33.8MB). Peak memory consumption was 111.8MB. Max. memory is 8.0GB. [2022-12-06 01:41:56,170 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 162.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:41:56,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.21ms. Allocated memory is still 186.6MB. Free memory was 160.5MB in the beginning and 141.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 01:41:56,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.46ms. Allocated memory is still 186.6MB. Free memory was 141.3MB in the beginning and 139.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:41:56,171 INFO L158 Benchmark]: Boogie Preprocessor took 29.48ms. Allocated memory is still 186.6MB. Free memory was 139.6MB in the beginning and 138.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 01:41:56,172 INFO L158 Benchmark]: RCFGBuilder took 349.47ms. Allocated memory is still 186.6MB. Free memory was 138.2MB in the beginning and 125.0MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 01:41:56,172 INFO L158 Benchmark]: TraceAbstraction took 3489.21ms. Allocated memory was 186.6MB in the beginning and 265.3MB in the end (delta: 78.6MB). Free memory was 124.4MB in the beginning and 126.8MB in the end (delta: -2.4MB). Peak memory consumption was 76.2MB. Max. memory is 8.0GB. [2022-12-06 01:41:56,173 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 186.6MB. Free memory is still 162.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 399.21ms. Allocated memory is still 186.6MB. Free memory was 160.5MB in the beginning and 141.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.46ms. Allocated memory is still 186.6MB. Free memory was 141.3MB in the beginning and 139.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.48ms. Allocated memory is still 186.6MB. Free memory was 139.6MB in the beginning and 138.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 349.47ms. Allocated memory is still 186.6MB. Free memory was 138.2MB in the beginning and 125.0MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3489.21ms. Allocated memory was 186.6MB in the beginning and 265.3MB in the end (delta: 78.6MB). Free memory was 124.4MB in the beginning and 126.8MB in the end (delta: -2.4MB). Peak memory consumption was 76.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 64 PlacesBefore, 18 PlacesAfterwards, 61 TransitionsBefore, 15 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 17 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 426, independent: 361, independent conditional: 361, independent unconditional: 0, dependent: 65, dependent conditional: 65, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 426, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 426, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 426, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 278, independent: 248, independent conditional: 0, independent unconditional: 248, 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: 278, independent: 227, independent conditional: 0, independent unconditional: 227, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 426, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 278, unknown conditional: 0, unknown unconditional: 278] , Statistics on independence cache: Total cache size (in pairs): 396, Positive cache size: 366, Positive conditional cache size: 0, Positive unconditional cache size: 366, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 20 PlacesBefore, 18 PlacesAfterwards, 19 TransitionsBefore, 17 TransitionsAfterwards, 32 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [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=17] - 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: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 01:41:56,205 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...