/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_36-apron_41-threadenter-no-locals_unknown_1_pos_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 16:04:33,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 16:04:33,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 16:04:33,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 16:04:33,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 16:04:33,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 16:04:33,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 16:04:33,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 16:04:33,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 16:04:33,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 16:04:33,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 16:04:33,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 16:04:33,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 16:04:33,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 16:04:33,819 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 16:04:33,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 16:04:33,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 16:04:33,820 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 16:04:33,820 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 16:04:33,820 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 16:04:33,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 16:04:33,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 16:04:33,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 16:04:33,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 16:04:33,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 16:04:33,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 16:04:33,823 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 16:04:33,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 16:04:33,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 16:04:33,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 16:04:33,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:04:33,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 16:04:33,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 16:04:33,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 16:04:33,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 16:04:33,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 16:04:33,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 16:04:33,825 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 16:04:33,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 16:04:33,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 16:04:33,826 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 16:04:33,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 16:04:34,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 16:04:34,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 16:04:34,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 16:04:34,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 16:04:34,085 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 16:04:34,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_pos_bound2.i [2023-08-03 16:04:35,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 16:04:35,451 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 16:04:35,451 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_pos_bound2.i [2023-08-03 16:04:35,468 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7c146e8/40cc4fcf3c8d426f9d6ab92e546af841/FLAG662f175d6 [2023-08-03 16:04:35,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7c146e8/40cc4fcf3c8d426f9d6ab92e546af841 [2023-08-03 16:04:35,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 16:04:35,486 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 16:04:35,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 16:04:35,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 16:04:35,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 16:04:35,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa21933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35, skipping insertion in model container [2023-08-03 16:04:35,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,526 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 16:04:35,662 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_36-apron_41-threadenter-no-locals_unknown_1_pos_bound2.i[1102,1115] [2023-08-03 16:04:35,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:04:35,834 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 16:04:35,845 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_36-apron_41-threadenter-no-locals_unknown_1_pos_bound2.i[1102,1115] [2023-08-03 16:04:35,862 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-03 16:04:35,864 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-03 16:04:35,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 16:04:35,915 INFO L206 MainTranslator]: Completed translation [2023-08-03 16:04:35,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35 WrapperNode [2023-08-03 16:04:35,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 16:04:35,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 16:04:35,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 16:04:35,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 16:04:35,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,957 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2023-08-03 16:04:35,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 16:04:35,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 16:04:35,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 16:04:35,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 16:04:35,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 16:04:35,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 16:04:35,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 16:04:35,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 16:04:35,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (1/1) ... [2023-08-03 16:04:35,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 16:04:36,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 16:04:36,018 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 16:04:36,021 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 16:04:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 16:04:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 16:04:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 16:04:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-03 16:04:36,047 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-03 16:04:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 16:04:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 16:04:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 16:04:36,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 16:04:36,050 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 16:04:36,145 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 16:04:36,147 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 16:04:36,250 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 16:04:36,256 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 16:04:36,256 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-03 16:04:36,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:04:36 BoogieIcfgContainer [2023-08-03 16:04:36,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 16:04:36,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 16:04:36,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 16:04:36,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 16:04:36,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 04:04:35" (1/3) ... [2023-08-03 16:04:36,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6214c7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:04:36, skipping insertion in model container [2023-08-03 16:04:36,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 04:04:35" (2/3) ... [2023-08-03 16:04:36,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6214c7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 04:04:36, skipping insertion in model container [2023-08-03 16:04:36,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 04:04:36" (3/3) ... [2023-08-03 16:04:36,266 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_36-apron_41-threadenter-no-locals_unknown_1_pos_bound2.i [2023-08-03 16:04:36,274 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 16:04:36,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 16:04:36,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 16:04:36,283 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 16:04:36,318 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 16:04:36,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 95 flow [2023-08-03 16:04:36,369 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2023-08-03 16:04:36,369 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:04:36,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 3/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2023-08-03 16:04:36,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 45 transitions, 95 flow [2023-08-03 16:04:36,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 45 transitions, 95 flow [2023-08-03 16:04:36,379 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 16:04:36,398 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 45 transitions, 95 flow [2023-08-03 16:04:36,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 45 transitions, 95 flow [2023-08-03 16:04:36,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 95 flow [2023-08-03 16:04:36,413 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2023-08-03 16:04:36,413 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:04:36,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 3/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2023-08-03 16:04:36,415 INFO L119 LiptonReduction]: Number of co-enabled transitions 510 [2023-08-03 16:04:37,531 INFO L134 LiptonReduction]: Checked pairs total: 423 [2023-08-03 16:04:37,531 INFO L136 LiptonReduction]: Total number of compositions: 47 [2023-08-03 16:04:37,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 16:04:37,558 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;@281e5cc4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 16:04:37,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-03 16:04:37,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 16:04:37,561 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-03 16:04:37,561 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 16:04:37,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 16:04:37,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 16:04:37,562 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 16:04:37,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 16:04:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash 6017821, now seen corresponding path program 1 times [2023-08-03 16:04:37,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 16:04:37,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787476886] [2023-08-03 16:04:37,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 16:04:37,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 16:04:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:04:37,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 16:04:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 16:04:37,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 16:04:37,695 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 16:04:37,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-03 16:04:37,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-03 16:04:37,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-03 16:04:37,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 16:04:37,699 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 16:04:37,705 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-03 16:04:37,706 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 16:04:37,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 04:04:37 BasicIcfg [2023-08-03 16:04:37,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 16:04:37,721 INFO L158 Benchmark]: Toolchain (without parser) took 2235.03ms. Allocated memory is still 551.6MB. Free memory was 500.0MB in the beginning and 436.2MB in the end (delta: 63.8MB). Peak memory consumption was 64.2MB. Max. memory is 16.0GB. [2023-08-03 16:04:37,722 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 305.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 16:04:37,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.88ms. Allocated memory is still 551.6MB. Free memory was 500.0MB in the beginning and 481.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-03 16:04:37,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.01ms. Allocated memory is still 551.6MB. Free memory was 481.5MB in the beginning and 479.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:04:37,723 INFO L158 Benchmark]: Boogie Preprocessor took 27.80ms. Allocated memory is still 551.6MB. Free memory was 479.6MB in the beginning and 478.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 16:04:37,724 INFO L158 Benchmark]: RCFGBuilder took 271.47ms. Allocated memory is still 551.6MB. Free memory was 478.1MB in the beginning and 467.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-03 16:04:37,724 INFO L158 Benchmark]: TraceAbstraction took 1459.83ms. Allocated memory is still 551.6MB. Free memory was 466.5MB in the beginning and 436.2MB in the end (delta: 30.3MB). Peak memory consumption was 30.7MB. Max. memory is 16.0GB. [2023-08-03 16:04:37,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 305.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 428.88ms. Allocated memory is still 551.6MB. Free memory was 500.0MB in the beginning and 481.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.01ms. Allocated memory is still 551.6MB. Free memory was 481.5MB in the beginning and 479.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.80ms. Allocated memory is still 551.6MB. Free memory was 479.6MB in the beginning and 478.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 271.47ms. Allocated memory is still 551.6MB. Free memory was 478.1MB in the beginning and 467.0MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1459.83ms. Allocated memory is still 551.6MB. Free memory was 466.5MB in the beginning and 436.2MB in the end (delta: 30.3MB). Peak memory consumption was 30.7MB. 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: 1.1s, 46 PlacesBefore, 11 PlacesAfterwards, 45 TransitionsBefore, 8 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 47 TotalNumberOfCompositions, 423 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 423, independent: 423, independent conditional: 0, independent unconditional: 423, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 270, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 423, independent: 153, independent conditional: 0, independent unconditional: 153, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 270, unknown conditional: 0, unknown unconditional: 270] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id[2]; [L690] 0 int asdf=0; VAL [asdf=0, id={3:0}, x=3] [L690] COND TRUE 0 asdf<2 [L690] FCALL, FORK 0 pthread_create(&id[asdf], ((void *)0), t_fun, ((void *)0)) VAL [asdf=0, id={3:0}, pthread_create(&id[asdf], ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 59 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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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 16:04:37,745 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...