/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_pos_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 16:00:12,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 16:00:12,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 16:00:12,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 16:00:12,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 16:00:12,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 16:00:12,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 16:00:12,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 16:00:12,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 16:00:12,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 16:00:12,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 16:00:12,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 16:00:12,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 16:00:12,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 16:00:12,694 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 16:00:12,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 16:00:12,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 16:00:12,694 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 16:00:12,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 16:00:12,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 16:00:12,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 16:00:12,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 16:00:12,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 16:00:12,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 16:00:12,696 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 16:00:12,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 16:00:12,696 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 16:00:12,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 16:00:12,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 16:00:12,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:00:12,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 16:00:12,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 16:00:12,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 16:00:12,699 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 16:00:12,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 16:00:12,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 16:00:12,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 16:00:12,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 16:00:12,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 16:00:12,901 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 16:00:12,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_1_pos_bound2.i [2023-08-03 16:00:13,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 16:00:14,155 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 16:00:14,155 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_13-privatized_18-first-reads_unknown_1_pos_bound2.i [2023-08-03 16:00:14,172 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710a3e966/5469f00b38164ad99e6fa47f5c5d9f82/FLAGab3aff8cf [2023-08-03 16:00:14,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710a3e966/5469f00b38164ad99e6fa47f5c5d9f82 [2023-08-03 16:00:14,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 16:00:14,183 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 16:00:14,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 16:00:14,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 16:00:14,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 16:00:14,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ae7c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14, skipping insertion in model container [2023-08-03 16:00:14,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,216 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 16:00:14,325 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_pos_bound2.i[1097,1110] [2023-08-03 16:00:14,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:00:14,428 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 16:00:14,440 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_pos_bound2.i[1097,1110] [2023-08-03 16:00:14,461 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-03 16:00:14,462 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-03 16:00:14,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:00:14,498 INFO L206 MainTranslator]: Completed translation [2023-08-03 16:00:14,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14 WrapperNode [2023-08-03 16:00:14,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 16:00:14,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 16:00:14,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 16:00:14,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 16:00:14,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,536 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-08-03 16:00:14,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 16:00:14,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 16:00:14,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 16:00:14,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 16:00:14,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 16:00:14,555 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 16:00:14,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 16:00:14,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 16:00:14,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (1/1) ... [2023-08-03 16:00:14,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:00:14,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 16:00:14,589 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 16:00:14,591 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 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-03 16:00:14,621 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 16:00:14,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 16:00:14,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 16:00:14,622 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 16:00:14,731 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 16:00:14,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 16:00:14,821 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 16:00:14,825 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 16:00:14,825 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-03 16:00:14,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:00:14 BoogieIcfgContainer [2023-08-03 16:00:14,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 16:00:14,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 16:00:14,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 16:00:14,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 16:00:14,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 04:00:14" (1/3) ... [2023-08-03 16:00:14,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49161e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:00:14, skipping insertion in model container [2023-08-03 16:00:14,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:00:14" (2/3) ... [2023-08-03 16:00:14,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49161e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:00:14, skipping insertion in model container [2023-08-03 16:00:14,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:00:14" (3/3) ... [2023-08-03 16:00:14,831 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_13-privatized_18-first-reads_unknown_1_pos_bound2.i [2023-08-03 16:00:14,836 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 16:00:14,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 16:00:14,842 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 16:00:14,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 16:00:14,874 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-03 16:00:14,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 73 transitions, 154 flow [2023-08-03 16:00:14,980 INFO L124 PetriNetUnfolderBase]: 7/92 cut-off events. [2023-08-03 16:00:14,980 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-03 16:00:14,983 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 16:00:14,983 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 73 transitions, 154 flow [2023-08-03 16:00:14,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:14,988 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 16:00:15,000 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:15,002 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:15,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 68 transitions, 141 flow [2023-08-03 16:00:15,025 INFO L124 PetriNetUnfolderBase]: 6/87 cut-off events. [2023-08-03 16:00:15,026 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:00:15,026 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 16:00:15,027 INFO L119 LiptonReduction]: Number of co-enabled transitions 1150 [2023-08-03 16:00:16,755 INFO L134 LiptonReduction]: Checked pairs total: 1173 [2023-08-03 16:00:16,755 INFO L136 LiptonReduction]: Total number of compositions: 72 [2023-08-03 16:00:16,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 16:00:16,771 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;@446cd439, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 16:00:16,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-03 16:00:16,778 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 16:00:16,778 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-03 16:00:16,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:00:16,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 16:00:16,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 16:00:16,779 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 16:00:16,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 16:00:16,782 INFO L85 PathProgramCache]: Analyzing trace with hash 9212756, now seen corresponding path program 1 times [2023-08-03 16:00:16,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 16:00:16,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020783923] [2023-08-03 16:00:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 16:00:16,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 16:00:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:00:16,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 16:00:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:00:16,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 16:00:16,947 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 16:00:16,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-03 16:00:16,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-03 16:00:16,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-03 16:00:16,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 16:00:16,950 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 16:00:16,958 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-03 16:00:16,958 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 16:00:16,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 04:00:16 BasicIcfg [2023-08-03 16:00:16,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 16:00:16,978 INFO L158 Benchmark]: Toolchain (without parser) took 2794.30ms. Allocated memory is still 373.3MB. Free memory was 327.3MB in the beginning and 176.8MB in the end (delta: 150.6MB). Peak memory consumption was 152.3MB. Max. memory is 16.0GB. [2023-08-03 16:00:16,978 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 373.3MB. Free memory is still 328.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:00:16,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.14ms. Allocated memory is still 373.3MB. Free memory was 327.0MB in the beginning and 307.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-03 16:00:16,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.90ms. Allocated memory is still 373.3MB. Free memory was 307.8MB in the beginning and 305.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:00:16,982 INFO L158 Benchmark]: Boogie Preprocessor took 18.14ms. Allocated memory is still 373.3MB. Free memory was 305.9MB in the beginning and 304.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:00:16,983 INFO L158 Benchmark]: RCFGBuilder took 271.10ms. Allocated memory is still 373.3MB. Free memory was 304.3MB in the beginning and 291.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-03 16:00:16,984 INFO L158 Benchmark]: TraceAbstraction took 2148.73ms. Allocated memory is still 373.3MB. Free memory was 290.3MB in the beginning and 177.5MB in the end (delta: 112.8MB). Peak memory consumption was 114.6MB. Max. memory is 16.0GB. [2023-08-03 16:00:16,989 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 328.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 315.14ms. Allocated memory is still 373.3MB. Free memory was 327.0MB in the beginning and 307.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.90ms. Allocated memory is still 373.3MB. Free memory was 307.8MB in the beginning and 305.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.14ms. Allocated memory is still 373.3MB. Free memory was 305.9MB in the beginning and 304.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 271.10ms. Allocated memory is still 373.3MB. Free memory was 304.3MB in the beginning and 291.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2148.73ms. Allocated memory is still 373.3MB. Free memory was 290.3MB in the beginning and 177.5MB in the end (delta: 112.8MB). Peak memory consumption was 114.6MB. 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: 1.8s, 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 == 0) [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: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, 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 16:00:17,006 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...