/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_1_neg_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 16:00:05,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 16:00:05,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 16:00:05,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 16:00:05,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 16:00:05,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 16:00:05,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 16:00:05,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 16:00:05,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 16:00:05,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 16:00:05,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 16:00:05,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 16:00:05,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 16:00:05,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 16:00:05,249 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 16:00:05,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 16:00:05,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 16:00:05,250 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 16:00:05,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 16:00:05,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 16:00:05,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 16:00:05,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 16:00:05,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 16:00:05,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 16:00:05,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 16:00:05,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 16:00:05,253 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 16:00:05,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 16:00:05,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 16:00:05,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 16:00:05,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:00:05,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 16:00:05,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 16:00:05,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 16:00:05,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 16:00:05,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 16:00:05,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 16:00:05,256 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 16:00:05,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 16:00:05,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 16:00:05,257 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 16:00:05,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 16:00:05,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 16:00:05,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 16:00:05,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 16:00:05,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 16:00:05,478 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 16:00:05,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_1_neg_bound2.i [2023-08-03 16:00:06,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 16:00:06,830 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 16:00:06,831 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_1_neg_bound2.i [2023-08-03 16:00:06,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73372c0dc/315831b218f64c9ba9f08e754b6ba7de/FLAGff1bb3e0a [2023-08-03 16:00:06,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73372c0dc/315831b218f64c9ba9f08e754b6ba7de [2023-08-03 16:00:06,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 16:00:06,857 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 16:00:06,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 16:00:06,858 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 16:00:06,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 16:00:06,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:00:06" (1/1) ... [2023-08-03 16:00:06,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d61f0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:06, skipping insertion in model container [2023-08-03 16:00:06,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:00:06" (1/1) ... [2023-08-03 16:00:06,892 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 16:00:07,012 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_1_neg_bound2.i[1097,1110] [2023-08-03 16:00:07,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:00:07,156 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 16:00:07,170 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_1_neg_bound2.i[1097,1110] [2023-08-03 16:00:07,177 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-03 16:00:07,178 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-03 16:00:07,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:00:07,218 INFO L206 MainTranslator]: Completed translation [2023-08-03 16:00:07,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07 WrapperNode [2023-08-03 16:00:07,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 16:00:07,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 16:00:07,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 16:00:07,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 16:00:07,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,274 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-08-03 16:00:07,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 16:00:07,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 16:00:07,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 16:00:07,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 16:00:07,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 16:00:07,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 16:00:07,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 16:00:07,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 16:00:07,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (1/1) ... [2023-08-03 16:00:07,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:00:07,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 16:00:07,336 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 16:00:07,338 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 16:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 16:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 16:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-03 16:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 16:00:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 16:00:07,374 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-03 16:00:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-03 16:00:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 16:00:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 16:00:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 16:00:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 16:00:07,377 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 16:00:07,476 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 16:00:07,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 16:00:07,594 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 16:00:07,599 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 16:00:07,600 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-03 16:00:07,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:00:07 BoogieIcfgContainer [2023-08-03 16:00:07,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 16:00:07,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 16:00:07,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 16:00:07,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 16:00:07,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 04:00:06" (1/3) ... [2023-08-03 16:00:07,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104a66be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:00:07, skipping insertion in model container [2023-08-03 16:00:07,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:07" (2/3) ... [2023-08-03 16:00:07,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104a66be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:00:07, skipping insertion in model container [2023-08-03 16:00:07,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:00:07" (3/3) ... [2023-08-03 16:00:07,609 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_13-privatized_18-first-reads_unknown_1_neg_bound2.i [2023-08-03 16:00:07,615 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 16:00:07,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 16:00:07,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 16:00:07,623 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 16:00:07,670 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-03 16:00:07,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 73 transitions, 154 flow [2023-08-03 16:00:07,752 INFO L124 PetriNetUnfolderBase]: 7/92 cut-off events. [2023-08-03 16:00:07,753 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-03 16:00:07,757 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 16:00:07,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 73 transitions, 154 flow [2023-08-03 16:00:07,760 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:07,763 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 16:00:07,770 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:07,772 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:07,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:07,790 INFO L124 PetriNetUnfolderBase]: 6/87 cut-off events. [2023-08-03 16:00:07,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:00:07,791 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 16:00:07,792 INFO L119 LiptonReduction]: Number of co-enabled transitions 1150 [2023-08-03 16:00:09,808 INFO L134 LiptonReduction]: Checked pairs total: 1173 [2023-08-03 16:00:09,809 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-03 16:00:09,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 16:00:09,830 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;@39f97075, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 16:00:09,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-03 16:00:09,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 16:00:09,833 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-03 16:00:09,834 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:00:09,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 16:00:09,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 16:00:09,835 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 16:00:09,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 16:00:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash 9212756, now seen corresponding path program 1 times [2023-08-03 16:00:09,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 16:00:09,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309380239] [2023-08-03 16:00:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 16:00:09,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 16:00:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:00:09,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 16:00:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:00:09,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 16:00:09,980 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 16:00:09,981 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-03 16:00:09,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-03 16:00:09,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-03 16:00:09,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 16:00:09,983 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 16:00:09,988 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-03 16:00:09,988 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 16:00:10,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 04:00:10 BasicIcfg [2023-08-03 16:00:10,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 16:00:10,003 INFO L158 Benchmark]: Toolchain (without parser) took 3146.28ms. Allocated memory is still 660.6MB. Free memory was 607.4MB in the beginning and 564.5MB in the end (delta: 42.9MB). Peak memory consumption was 44.7MB. Max. memory is 16.0GB. [2023-08-03 16:00:10,003 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 411.0MB. Free memory is still 359.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:00:10,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.33ms. Allocated memory is still 660.6MB. Free memory was 607.1MB in the beginning and 587.9MB in the end (delta: 19.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-03 16:00:10,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.29ms. Allocated memory is still 660.6MB. Free memory was 587.9MB in the beginning and 586.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:00:10,005 INFO L158 Benchmark]: Boogie Preprocessor took 32.15ms. Allocated memory is still 660.6MB. Free memory was 585.9MB in the beginning and 584.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:00:10,005 INFO L158 Benchmark]: RCFGBuilder took 293.51ms. Allocated memory is still 660.6MB. Free memory was 584.6MB in the beginning and 571.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-03 16:00:10,005 INFO L158 Benchmark]: TraceAbstraction took 2398.49ms. Allocated memory is still 660.6MB. Free memory was 570.9MB in the beginning and 564.5MB in the end (delta: 6.4MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. [2023-08-03 16:00:10,007 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 411.0MB. Free memory is still 359.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 361.33ms. Allocated memory is still 660.6MB. Free memory was 607.1MB in the beginning and 587.9MB in the end (delta: 19.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.29ms. Allocated memory is still 660.6MB. Free memory was 587.9MB in the beginning and 586.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 32.15ms. Allocated memory is still 660.6MB. Free memory was 585.9MB in the beginning and 584.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 293.51ms. Allocated memory is still 660.6MB. Free memory was 584.6MB in the beginning and 571.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2398.49ms. Allocated memory is still 660.6MB. Free memory was 570.9MB in the beginning and 564.5MB in the end (delta: 6.4MB). Peak memory consumption was 7.0MB. 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 == 0)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, 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: 2.3s, 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, 0.0s 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 16:00:10,027 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...