/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 PROGRAM_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_pos_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 04:30:43,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 04:30:43,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 04:30:43,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 04:30:43,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 04:30:43,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 04:30:43,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 04:30:43,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 04:30:43,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 04:30:43,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 04:30:43,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 04:30:43,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 04:30:43,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 04:30:43,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 04:30:43,464 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 04:30:43,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 04:30:43,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 04:30:43,465 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 04:30:43,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 04:30:43,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 04:30:43,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 04:30:43,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 04:30:43,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 04:30:43,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 04:30:43,467 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 04:30:43,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 04:30:43,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 04:30:43,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 04:30:43,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 04:30:43,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 04:30:43,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:30:43,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 04:30:43,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 04:30:43,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 04:30:43,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 04:30:43,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 04:30:43,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 04:30:43,470 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 04:30:43,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 04:30:43,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 04:30:43,471 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 04:30:43,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 04:30:43,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 04:30:43,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 04:30:43,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 04:30:43,736 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 04:30:43,737 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 04:30:43,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_pos_bound2.i [2023-08-04 04:30:44,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 04:30:45,176 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 04:30:45,176 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_pos_bound2.i [2023-08-04 04:30:45,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4465b924c/c939aeddc3f34a6bb0b16cbfd8aec918/FLAG3f4483c67 [2023-08-04 04:30:45,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4465b924c/c939aeddc3f34a6bb0b16cbfd8aec918 [2023-08-04 04:30:45,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 04:30:45,210 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 04:30:45,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 04:30:45,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 04:30:45,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 04:30:45,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a8b69b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45, skipping insertion in model container [2023-08-04 04:30:45,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,254 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 04:30:45,387 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_pos_bound2.i[1097,1110] [2023-08-04 04:30:45,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:30:45,500 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 04:30:45,516 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_pos_bound2.i[1097,1110] [2023-08-04 04:30:45,539 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-04 04:30:45,541 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-04 04:30:45,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:30:45,594 INFO L206 MainTranslator]: Completed translation [2023-08-04 04:30:45,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45 WrapperNode [2023-08-04 04:30:45,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 04:30:45,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 04:30:45,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 04:30:45,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 04:30:45,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,629 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-08-04 04:30:45,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 04:30:45,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 04:30:45,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 04:30:45,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 04:30:45,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 04:30:45,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 04:30:45,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 04:30:45,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 04:30:45,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (1/1) ... [2023-08-04 04:30:45,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:30:45,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:30:45,694 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) [2023-08-04 04:30:45,696 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 [2023-08-04 04:30:45,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-04 04:30:45,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-04 04:30:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 04:30:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 04:30:45,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 04:30:45,723 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-04 04:30:45,831 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 04:30:45,832 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 04:30:45,952 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 04:30:45,959 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 04:30:45,959 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-04 04:30:45,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:30:45 BoogieIcfgContainer [2023-08-04 04:30:45,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 04:30:45,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 04:30:45,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 04:30:45,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 04:30:45,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 04:30:45" (1/3) ... [2023-08-04 04:30:45,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67966189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:30:45, skipping insertion in model container [2023-08-04 04:30:45,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:30:45" (2/3) ... [2023-08-04 04:30:45,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67966189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:30:45, skipping insertion in model container [2023-08-04 04:30:45,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:30:45" (3/3) ... [2023-08-04 04:30:45,967 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_13-privatized_18-first-reads_unknown_2_pos_bound2.i [2023-08-04 04:30:45,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 04:30:45,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 04:30:45,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 04:30:45,980 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 04:30:46,035 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-04 04:30:46,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 73 transitions, 154 flow [2023-08-04 04:30:46,108 INFO L124 PetriNetUnfolderBase]: 7/92 cut-off events. [2023-08-04 04:30:46,108 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-04 04:30:46,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 92 events. 7/92 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2023-08-04 04:30:46,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 73 transitions, 154 flow [2023-08-04 04:30:46,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 68 transitions, 141 flow [2023-08-04 04:30:46,123 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:30:46,132 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-04 04:30:46,135 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-04 04:30:46,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 68 transitions, 141 flow [2023-08-04 04:30:46,162 INFO L124 PetriNetUnfolderBase]: 6/87 cut-off events. [2023-08-04 04:30:46,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:30:46,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 6/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2023-08-04 04:30:46,164 INFO L119 LiptonReduction]: Number of co-enabled transitions 1150 [2023-08-04 04:30:48,172 INFO L134 LiptonReduction]: Checked pairs total: 1173 [2023-08-04 04:30:48,172 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-04 04:30:48,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:30:48,190 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;@4680aa4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:30:48,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-04 04:30:48,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:30:48,193 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-04 04:30:48,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:30:48,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:30:48,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-04 04:30:48,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:30:48,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:30:48,199 INFO L85 PathProgramCache]: Analyzing trace with hash 9212756, now seen corresponding path program 1 times [2023-08-04 04:30:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:30:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861839061] [2023-08-04 04:30:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:30:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:30:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:30:48,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-04 04:30:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:30:48,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-04 04:30:48,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-04 04:30:48,402 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-04 04:30:48,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-08-04 04:30:48,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 04:30:48,405 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 04:30:48,411 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN (1/2) [2023-08-04 04:30:48,415 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-04 04:30:48,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 04:30:48,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 04:30:48 BasicIcfg [2023-08-04 04:30:48,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 04:30:48,435 INFO L158 Benchmark]: Toolchain (without parser) took 3224.94ms. Allocated memory is still 518.0MB. Free memory was 470.3MB in the beginning and 362.1MB in the end (delta: 108.2MB). Peak memory consumption was 110.9MB. Max. memory is 16.0GB. [2023-08-04 04:30:48,436 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory was 308.0MB in the beginning and 307.9MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 04:30:48,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.51ms. Allocated memory is still 518.0MB. Free memory was 470.3MB in the beginning and 451.2MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-04 04:30:48,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.82ms. Allocated memory is still 518.0MB. Free memory was 451.2MB in the beginning and 449.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:30:48,441 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 518.0MB. Free memory was 449.0MB in the beginning and 447.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:30:48,443 INFO L158 Benchmark]: RCFGBuilder took 302.57ms. Allocated memory is still 518.0MB. Free memory was 447.4MB in the beginning and 434.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-04 04:30:48,443 INFO L158 Benchmark]: TraceAbstraction took 2472.01ms. Allocated memory is still 518.0MB. Free memory was 433.8MB in the beginning and 362.1MB in the end (delta: 71.6MB). Peak memory consumption was 73.2MB. Max. memory is 16.0GB. [2023-08-04 04:30:48,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory was 308.0MB in the beginning and 307.9MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 383.51ms. Allocated memory is still 518.0MB. Free memory was 470.3MB in the beginning and 451.2MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.82ms. Allocated memory is still 518.0MB. Free memory was 451.2MB in the beginning and 449.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 518.0MB. Free memory was 449.0MB in the beginning and 447.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 302.57ms. Allocated memory is still 518.0MB. Free memory was 447.4MB in the beginning and 434.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2472.01ms. Allocated memory is still 518.0MB. Free memory was 433.8MB in the beginning and 362.1MB in the end (delta: 71.6MB). Peak memory consumption was 73.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 67 PlacesBefore, 14 PlacesAfterwards, 68 TransitionsBefore, 11 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 72 TotalNumberOfCompositions, 1173 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1013, independent: 979, independent conditional: 0, independent unconditional: 979, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 657, independent: 642, independent conditional: 0, independent unconditional: 642, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1013, independent: 337, independent conditional: 0, independent unconditional: 337, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 657, unknown conditional: 0, unknown unconditional: 657] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id[2]; [L698] 0 int asdf=0; VAL [asdf=0, glob1=0, id={5:0}, mutex1={3:0}] [L698] COND TRUE 0 asdf<2 [L698] FCALL, FORK 0 pthread_create(&id[asdf], ((void *)0), t_fun, ((void *)0)) VAL [asdf=0, glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id[asdf], ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 3 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: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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! [2023-08-04 04:30:48,468 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...