/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/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_neg_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 16:00:13,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 16:00:13,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 16:00:13,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 16:00:13,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 16:00:13,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 16:00:13,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 16:00:13,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 16:00:13,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 16:00:13,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 16:00:13,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 16:00:13,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 16:00:13,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 16:00:13,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 16:00:13,753 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 16:00:13,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 16:00:13,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 16:00:13,754 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 16:00:13,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 16:00:13,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 16:00:13,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 16:00:13,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 16:00:13,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 16:00:13,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 16:00:13,755 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 16:00:13,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 16:00:13,756 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 16:00:13,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 16:00:13,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 16:00:13,757 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 16:00:13,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:00:13,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 16:00:13,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 16:00:13,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 16:00:13,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 16:00:13,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 16:00:13,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 16:00:13,759 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 16:00:13,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 16:00:13,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 16:00:13,759 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 16:00:13,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 16:00:13,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 16:00:14,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 16:00:14,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 16:00:14,018 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 16:00:14,018 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 16:00:14,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_neg_bound2.i [2023-08-03 16:00:15,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 16:00:15,421 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 16:00:15,421 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_2_neg_bound2.i [2023-08-03 16:00:15,432 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7368af293/501da10741d5494993672f92275cc01b/FLAG20affecbd [2023-08-03 16:00:15,443 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7368af293/501da10741d5494993672f92275cc01b [2023-08-03 16:00:15,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 16:00:15,446 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 16:00:15,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 16:00:15,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 16:00:15,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 16:00:15,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4964671d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15, skipping insertion in model container [2023-08-03 16:00:15,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,496 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 16:00:15,638 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_neg_bound2.i[1097,1110] [2023-08-03 16:00:15,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:00:15,798 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 16:00:15,809 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_neg_bound2.i[1097,1110] [2023-08-03 16:00:15,828 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-03 16:00:15,830 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-03 16:00:15,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:00:15,880 INFO L206 MainTranslator]: Completed translation [2023-08-03 16:00:15,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15 WrapperNode [2023-08-03 16:00:15,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 16:00:15,882 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 16:00:15,882 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 16:00:15,882 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 16:00:15,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,930 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-08-03 16:00:15,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 16:00:15,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 16:00:15,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 16:00:15,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 16:00:15,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 16:00:15,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 16:00:15,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 16:00:15,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 16:00:15,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (1/1) ... [2023-08-03 16:00:15,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:00:15,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 16:00:16,008 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 16:00:16,016 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 16:00:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 16:00:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 16:00:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-03 16:00:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 16:00:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 16:00:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-03 16:00:16,035 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-03 16:00:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 16:00:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 16:00:16,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 16:00:16,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 16:00:16,037 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 16:00:16,152 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 16:00:16,154 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 16:00:16,261 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 16:00:16,266 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 16:00:16,266 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-03 16:00:16,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:00:16 BoogieIcfgContainer [2023-08-03 16:00:16,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 16:00:16,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 16:00:16,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 16:00:16,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 16:00:16,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 04:00:15" (1/3) ... [2023-08-03 16:00:16,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e9033b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:00:16, skipping insertion in model container [2023-08-03 16:00:16,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:15" (2/3) ... [2023-08-03 16:00:16,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e9033b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:00:16, skipping insertion in model container [2023-08-03 16:00:16,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:00:16" (3/3) ... [2023-08-03 16:00:16,278 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_13-privatized_18-first-reads_unknown_2_neg_bound2.i [2023-08-03 16:00:16,283 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 16:00:16,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 16:00:16,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 16:00:16,292 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 16:00:16,334 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-03 16:00:16,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 73 transitions, 154 flow [2023-08-03 16:00:16,400 INFO L124 PetriNetUnfolderBase]: 7/92 cut-off events. [2023-08-03 16:00:16,400 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-03 16:00:16,405 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. [2023-08-03 16:00:16,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 73 transitions, 154 flow [2023-08-03 16:00:16,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:16,410 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 16:00:16,435 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:16,437 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:16,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:16,461 INFO L124 PetriNetUnfolderBase]: 6/87 cut-off events. [2023-08-03 16:00:16,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:00:16,462 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. [2023-08-03 16:00:16,463 INFO L119 LiptonReduction]: Number of co-enabled transitions 1150 [2023-08-03 16:00:18,559 INFO L134 LiptonReduction]: Checked pairs total: 1173 [2023-08-03 16:00:18,559 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-03 16:00:18,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 16:00:18,584 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;@2638f647, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 16:00:18,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-03 16:00:18,587 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 16:00:18,587 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-03 16:00:18,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:00:18,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 16:00:18,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 16:00:18,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-03 16:00:18,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 16:00:18,592 INFO L85 PathProgramCache]: Analyzing trace with hash 9212756, now seen corresponding path program 1 times [2023-08-03 16:00:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 16:00:18,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631771521] [2023-08-03 16:00:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 16:00:18,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 16:00:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:00:18,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 16:00:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:00:18,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 16:00:18,727 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 16:00:18,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-03 16:00:18,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-03 16:00:18,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-03 16:00:18,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 16:00:18,730 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 16:00:18,736 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-03 16:00:18,736 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 16:00:18,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 04:00:18 BasicIcfg [2023-08-03 16:00:18,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 16:00:18,751 INFO L158 Benchmark]: Toolchain (without parser) took 3305.42ms. Allocated memory was 373.3MB in the beginning and 547.4MB in the end (delta: 174.1MB). Free memory was 330.1MB in the beginning and 352.4MB in the end (delta: -22.3MB). Peak memory consumption was 153.6MB. Max. memory is 16.0GB. [2023-08-03 16:00:18,752 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 373.3MB. Free memory is still 325.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:00:18,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.36ms. Allocated memory is still 373.3MB. Free memory was 330.1MB in the beginning and 310.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-03 16:00:18,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.72ms. Allocated memory is still 373.3MB. Free memory was 310.9MB in the beginning and 308.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:00:18,753 INFO L158 Benchmark]: Boogie Preprocessor took 40.35ms. Allocated memory is still 373.3MB. Free memory was 308.9MB in the beginning and 307.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:00:18,754 INFO L158 Benchmark]: RCFGBuilder took 295.06ms. Allocated memory is still 373.3MB. Free memory was 307.4MB in the beginning and 294.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-03 16:00:18,754 INFO L158 Benchmark]: TraceAbstraction took 2476.71ms. Allocated memory was 373.3MB in the beginning and 547.4MB in the end (delta: 174.1MB). Free memory was 294.1MB in the beginning and 352.4MB in the end (delta: -58.3MB). Peak memory consumption was 117.9MB. Max. memory is 16.0GB. [2023-08-03 16:00:18,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 373.3MB. Free memory is still 325.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 434.36ms. Allocated memory is still 373.3MB. Free memory was 330.1MB in the beginning and 310.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.72ms. Allocated memory is still 373.3MB. Free memory was 310.9MB in the beginning and 308.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.35ms. Allocated memory is still 373.3MB. Free memory was 308.9MB in the beginning and 307.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 295.06ms. Allocated memory is still 373.3MB. Free memory was 307.4MB in the beginning and 294.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2476.71ms. Allocated memory was 373.3MB in the beginning and 547.4MB in the end (delta: 174.1MB). Free memory was 294.1MB in the beginning and 352.4MB in the end (delta: -58.3MB). Peak memory consumption was 117.9MB. 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: 2.1s, 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 TRUE 1 t == 42 [L688] 1 glob1 = 1 [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=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 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: 2.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, 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, 0.0s 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! [2023-08-03 16:00:18,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...