/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_09-ptrmunge_racing_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 15:17:07,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 15:17:07,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 15:17:07,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 15:17:07,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 15:17:07,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 15:17:07,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 15:17:07,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 15:17:07,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 15:17:07,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 15:17:07,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 15:17:07,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 15:17:07,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 15:17:07,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 15:17:07,293 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 15:17:07,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 15:17:07,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 15:17:07,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 15:17:07,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 15:17:07,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 15:17:07,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 15:17:07,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 15:17:07,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 15:17:07,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 15:17:07,295 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 15:17:07,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 15:17:07,296 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 15:17:07,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 15:17:07,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 15:17:07,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 15:17:07,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 15:17:07,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 15:17:07,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 15:17:07,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 15:17:07,298 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 15:17:07,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 15:17:07,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 15:17:07,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 15:17:07,492 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 15:17:07,496 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 15:17:07,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_09-ptrmunge_racing_bound2.i [2023-08-03 15:17:08,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 15:17:08,592 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 15:17:08,592 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_09-ptrmunge_racing_bound2.i [2023-08-03 15:17:08,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af180b5e7/0ba701c4d6a74b6aa38c39e0cb06d609/FLAG31c6fc9cd [2023-08-03 15:17:08,623 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af180b5e7/0ba701c4d6a74b6aa38c39e0cb06d609 [2023-08-03 15:17:08,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 15:17:08,628 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 15:17:08,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 15:17:08,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 15:17:08,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 15:17:08,633 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:17:08" (1/1) ... [2023-08-03 15:17:08,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45835f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:08, skipping insertion in model container [2023-08-03 15:17:08,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:17:08" (1/1) ... [2023-08-03 15:17:08,672 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 15:17:08,913 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_09-ptrmunge_racing_bound2.i[30176,30189] [2023-08-03 15:17:08,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 15:17:08,942 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 15:17:08,965 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-03 15:17:08,966 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-03 15:17:08,974 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_09-ptrmunge_racing_bound2.i[30176,30189] [2023-08-03 15:17:08,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 15:17:09,020 INFO L206 MainTranslator]: Completed translation [2023-08-03 15:17:09,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09 WrapperNode [2023-08-03 15:17:09,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 15:17:09,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 15:17:09,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 15:17:09,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 15:17:09,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,076 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2023-08-03 15:17:09,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 15:17:09,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 15:17:09,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 15:17:09,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 15:17:09,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 15:17:09,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 15:17:09,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 15:17:09,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 15:17:09,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (1/1) ... [2023-08-03 15:17:09,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 15:17:09,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 15:17:09,134 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) [2023-08-03 15:17:09,136 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 [2023-08-03 15:17:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 15:17:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-03 15:17:09,154 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-03 15:17:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 15:17:09,154 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-03 15:17:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 15:17:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 15:17:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-03 15:17:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-03 15:17:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 15:17:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 15:17:09,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 15:17:09,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 15:17:09,156 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 15:17:09,254 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 15:17:09,255 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 15:17:09,512 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 15:17:09,521 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 15:17:09,521 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-03 15:17:09,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:17:09 BoogieIcfgContainer [2023-08-03 15:17:09,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 15:17:09,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 15:17:09,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 15:17:09,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 15:17:09,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 03:17:08" (1/3) ... [2023-08-03 15:17:09,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6922c438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:17:09, skipping insertion in model container [2023-08-03 15:17:09,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:17:09" (2/3) ... [2023-08-03 15:17:09,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6922c438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:17:09, skipping insertion in model container [2023-08-03 15:17:09,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:17:09" (3/3) ... [2023-08-03 15:17:09,530 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_28-race_reach_09-ptrmunge_racing_bound2.i [2023-08-03 15:17:09,535 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 15:17:09,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 15:17:09,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 15:17:09,542 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 15:17:09,638 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-03 15:17:09,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 215 transitions, 452 flow [2023-08-03 15:17:09,776 INFO L124 PetriNetUnfolderBase]: 58/380 cut-off events. [2023-08-03 15:17:09,776 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-08-03 15:17:09,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 380 events. 58/380 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1612 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-08-03 15:17:09,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 215 transitions, 452 flow [2023-08-03 15:17:09,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 215 transitions, 452 flow [2023-08-03 15:17:09,796 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 15:17:09,804 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 215 transitions, 452 flow [2023-08-03 15:17:09,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 215 transitions, 452 flow [2023-08-03 15:17:09,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 215 transitions, 452 flow [2023-08-03 15:17:09,840 INFO L124 PetriNetUnfolderBase]: 58/380 cut-off events. [2023-08-03 15:17:09,841 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-08-03 15:17:09,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 380 events. 58/380 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1612 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-08-03 15:17:09,851 INFO L119 LiptonReduction]: Number of co-enabled transitions 18788 [2023-08-03 15:17:13,256 INFO L134 LiptonReduction]: Checked pairs total: 31275 [2023-08-03 15:17:13,256 INFO L136 LiptonReduction]: Total number of compositions: 160 [2023-08-03 15:17:13,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 15:17:13,268 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62faa0db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 15:17:13,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 15:17:13,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 15:17:13,271 INFO L124 PetriNetUnfolderBase]: 1/21 cut-off events. [2023-08-03 15:17:13,272 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 15:17:13,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:17:13,272 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 15:17:13,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 15:17:13,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:17:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash -103624817, now seen corresponding path program 1 times [2023-08-03 15:17:13,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:17:13,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103302333] [2023-08-03 15:17:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:17:13,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:17:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:17:13,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 15:17:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:17:13,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 15:17:13,422 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 15:17:13,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-03 15:17:13,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 15:17:13,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-03 15:17:13,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-08-03 15:17:13,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-08-03 15:17:13,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 15:17:13,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 15:17:13,426 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 15:17:13,430 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 15:17:13,430 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 15:17:13,480 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-03 15:17:13,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 343 transitions, 734 flow [2023-08-03 15:17:13,629 INFO L124 PetriNetUnfolderBase]: 197/1103 cut-off events. [2023-08-03 15:17:13,629 INFO L125 PetriNetUnfolderBase]: For 72/81 co-relation queries the response was YES. [2023-08-03 15:17:13,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1103 events. 197/1103 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6638 event pairs, 1 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 671. Up to 32 conditions per place. [2023-08-03 15:17:13,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 343 transitions, 734 flow [2023-08-03 15:17:13,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 343 transitions, 734 flow [2023-08-03 15:17:13,650 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 15:17:13,650 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 343 transitions, 734 flow [2023-08-03 15:17:13,650 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 343 transitions, 734 flow [2023-08-03 15:17:13,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 343 transitions, 734 flow [2023-08-03 15:17:13,783 INFO L124 PetriNetUnfolderBase]: 197/1103 cut-off events. [2023-08-03 15:17:13,784 INFO L125 PetriNetUnfolderBase]: For 72/81 co-relation queries the response was YES. [2023-08-03 15:17:13,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1103 events. 197/1103 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6638 event pairs, 1 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 671. Up to 32 conditions per place. [2023-08-03 15:17:13,837 INFO L119 LiptonReduction]: Number of co-enabled transitions 69784 [2023-08-03 15:17:17,878 INFO L134 LiptonReduction]: Checked pairs total: 133189 [2023-08-03 15:17:17,878 INFO L136 LiptonReduction]: Total number of compositions: 247 [2023-08-03 15:17:17,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 15:17:17,880 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62faa0db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 15:17:17,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-03 15:17:17,884 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 15:17:17,884 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2023-08-03 15:17:17,884 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-03 15:17:17,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:17:17,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-03 15:17:17,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-08-03 15:17:17,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:17:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash -528320108, now seen corresponding path program 1 times [2023-08-03 15:17:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:17:17,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104294050] [2023-08-03 15:17:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:17:17,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:17:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:17:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:17:18,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:17:18,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104294050] [2023-08-03 15:17:18,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104294050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 15:17:18,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 15:17:18,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-03 15:17:18,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385586812] [2023-08-03 15:17:18,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 15:17:18,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-03 15:17:18,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 15:17:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-03 15:17:18,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-03 15:17:18,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 590 [2023-08-03 15:17:18,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 145 transitions, 338 flow. Second operand has 5 states, 5 states have (on average 263.4) internal successors, (1317), 5 states have internal predecessors, (1317), 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) [2023-08-03 15:17:18,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 15:17:18,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 590 [2023-08-03 15:17:18,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand