/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 18:40:36,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 18:40:36,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 18:40:36,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 18:40:36,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 18:40:36,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 18:40:36,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 18:40:36,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 18:40:36,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 18:40:36,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 18:40:36,192 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 18:40:36,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 18:40:36,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 18:40:36,194 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 18:40:36,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 18:40:36,194 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 18:40:36,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 18:40:36,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 18:40:36,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 18:40:36,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 18:40:36,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 18:40:36,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 18:40:36,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 18:40:36,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 18:40:36,197 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 18:40:36,197 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 18:40:36,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 18:40:36,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 18:40:36,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 18:40:36,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 18:40:36,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 18:40:36,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 18:40:36,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 18:40:36,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 18:40:36,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 18:40:36,200 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 18:40:36,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 18:40:36,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 18:40:36,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 18:40:36,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 18:40:36,528 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 18:40:36,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2023-08-26 18:40:37,774 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 18:40:38,090 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 18:40:38,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2023-08-26 18:40:38,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329ccd395/7ebb0c2edcac406eb936eb1919a9178d/FLAGb3aefccb1 [2023-08-26 18:40:38,127 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329ccd395/7ebb0c2edcac406eb936eb1919a9178d [2023-08-26 18:40:38,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 18:40:38,133 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 18:40:38,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 18:40:38,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 18:40:38,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 18:40:38,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5fd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38, skipping insertion in model container [2023-08-26 18:40:38,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,185 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 18:40:38,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 18:40:38,511 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 18:40:38,538 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-26 18:40:38,540 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 18:40:38,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 18:40:38,582 INFO L206 MainTranslator]: Completed translation [2023-08-26 18:40:38,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38 WrapperNode [2023-08-26 18:40:38,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 18:40:38,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 18:40:38,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 18:40:38,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 18:40:38,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,619 INFO L138 Inliner]: procedures = 162, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-08-26 18:40:38,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 18:40:38,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 18:40:38,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 18:40:38,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 18:40:38,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 18:40:38,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 18:40:38,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 18:40:38,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 18:40:38,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (1/1) ... [2023-08-26 18:40:38,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 18:40:38,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 18:40:38,678 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) [2023-08-26 18:40:38,689 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 [2023-08-26 18:40:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-08-26 18:40:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-08-26 18:40:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 18:40:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 18:40:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 18:40:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 18:40:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 18:40:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 18:40:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 18:40:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 18:40:38,711 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 18:40:38,825 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 18:40:38,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 18:40:38,995 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 18:40:39,001 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 18:40:39,001 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-26 18:40:39,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:40:39 BoogieIcfgContainer [2023-08-26 18:40:39,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 18:40:39,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 18:40:39,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 18:40:39,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 18:40:39,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:40:38" (1/3) ... [2023-08-26 18:40:39,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8e0bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:40:39, skipping insertion in model container [2023-08-26 18:40:39,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:40:38" (2/3) ... [2023-08-26 18:40:39,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8e0bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:40:39, skipping insertion in model container [2023-08-26 18:40:39,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:40:39" (3/3) ... [2023-08-26 18:40:39,012 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2023-08-26 18:40:39,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 18:40:39,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-26 18:40:39,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 18:40:39,074 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 18:40:39,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 151 flow [2023-08-26 18:40:39,134 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2023-08-26 18:40:39,135 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 18:40:39,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 5/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-08-26 18:40:39,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 73 transitions, 151 flow [2023-08-26 18:40:39,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 68 transitions, 139 flow [2023-08-26 18:40:39,144 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 18:40:39,151 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 68 transitions, 139 flow [2023-08-26 18:40:39,154 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 68 transitions, 139 flow [2023-08-26 18:40:39,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 68 transitions, 139 flow [2023-08-26 18:40:39,171 INFO L124 PetriNetUnfolderBase]: 4/68 cut-off events. [2023-08-26 18:40:39,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 18:40:39,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 4/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-08-26 18:40:39,173 INFO L119 LiptonReduction]: Number of co-enabled transitions 378 [2023-08-26 18:40:42,518 INFO L134 LiptonReduction]: Checked pairs total: 291 [2023-08-26 18:40:42,518 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-26 18:40:42,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 18:40:42,536 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=false, 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;@316431b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 18:40:42,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-26 18:40:42,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 18:40:42,538 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 18:40:42,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 18:40:42,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 18:40:42,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 18:40:42,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-26 18:40:42,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 18:40:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash 312, now seen corresponding path program 1 times [2023-08-26 18:40:42,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 18:40:42,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93235171] [2023-08-26 18:40:42,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 18:40:42,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 18:40:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 18:40:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 18:40:42,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 18:40:42,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93235171] [2023-08-26 18:40:42,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93235171] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 18:40:42,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 18:40:42,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 18:40:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587878025] [2023-08-26 18:40:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 18:40:42,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 18:40:42,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 18:40:42,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 18:40:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 18:40:42,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 157 [2023-08-26 18:40:42,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 19 flow. Second operand has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 18:40:42,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 157 [2023-08-26 18:40:42,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 18:40:42,675 INFO L124 PetriNetUnfolderBase]: 4/11 cut-off events. [2023-08-26 18:40:42,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 18:40:42,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 4/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/9 useless extension candidates. Maximal degree in co-relation 18. Up to 12 conditions per place. [2023-08-26 18:40:42,677 INFO L140 encePairwiseOnDemand]: 155/157 looper letters, 6 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2023-08-26 18:40:42,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-08-26 18:40:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 18:40:42,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 18:40:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 142 transitions. [2023-08-26 18:40:42,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45222929936305734 [2023-08-26 18:40:42,690 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 142 transitions. [2023-08-26 18:40:42,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 142 transitions. [2023-08-26 18:40:42,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 18:40:42,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 142 transitions. [2023-08-26 18:40:42,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 71.0) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,699 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,700 INFO L175 Difference]: Start difference. First operand has 11 places, 8 transitions, 19 flow. Second operand 2 states and 142 transitions. [2023-08-26 18:40:42,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-08-26 18:40:42,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 18:40:42,703 INFO L231 Difference]: Finished difference. Result has 9 places, 6 transitions, 14 flow [2023-08-26 18:40:42,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=14, PETRI_PLACES=9, PETRI_TRANSITIONS=6} [2023-08-26 18:40:42,708 INFO L281 CegarLoopForPetriNet]: 11 programPoint places, -2 predicate places. [2023-08-26 18:40:42,708 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 6 transitions, 14 flow [2023-08-26 18:40:42,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 18:40:42,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 18:40:42,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 18:40:42,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-26 18:40:42,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 18:40:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 9524987, now seen corresponding path program 1 times [2023-08-26 18:40:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 18:40:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391691385] [2023-08-26 18:40:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 18:40:42,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 18:40:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 18:40:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 18:40:42,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 18:40:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391691385] [2023-08-26 18:40:42,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391691385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 18:40:42,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 18:40:42,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 18:40:42,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443837542] [2023-08-26 18:40:42,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 18:40:42,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 18:40:42,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 18:40:42,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 18:40:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 18:40:42,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 157 [2023-08-26 18:40:42,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 6 transitions, 14 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 18:40:42,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 157 [2023-08-26 18:40:42,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 18:40:42,914 INFO L124 PetriNetUnfolderBase]: 3/8 cut-off events. [2023-08-26 18:40:42,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 18:40:42,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 8 events. 3/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 18. Up to 5 conditions per place. [2023-08-26 18:40:42,915 INFO L140 encePairwiseOnDemand]: 155/157 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2023-08-26 18:40:42,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 26 flow [2023-08-26 18:40:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 18:40:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 18:40:42,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2023-08-26 18:40:42,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4288747346072187 [2023-08-26 18:40:42,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2023-08-26 18:40:42,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2023-08-26 18:40:42,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 18:40:42,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2023-08-26 18:40:42,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,929 INFO L175 Difference]: Start difference. First operand has 9 places, 6 transitions, 14 flow. Second operand 3 states and 202 transitions. [2023-08-26 18:40:42,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 26 flow [2023-08-26 18:40:42,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 18:40:42,930 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2023-08-26 18:40:42,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2023-08-26 18:40:42,931 INFO L281 CegarLoopForPetriNet]: 11 programPoint places, -1 predicate places. [2023-08-26 18:40:42,931 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2023-08-26 18:40:42,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 18:40:42,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-08-26 18:40:42,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-08-26 18:40:42,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-26 18:40:42,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONASSERT (1 of 5 remaining) [2023-08-26 18:40:42,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONASSERT (0 of 5 remaining) [2023-08-26 18:40:42,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 18:40:42,938 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 18:40:42,942 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 18:40:42,942 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 18:40:42,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:40:42 BasicIcfg [2023-08-26 18:40:42,948 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 18:40:42,948 INFO L158 Benchmark]: Toolchain (without parser) took 4815.89ms. Allocated memory was 362.8MB in the beginning and 492.8MB in the end (delta: 130.0MB). Free memory was 338.4MB in the beginning and 364.5MB in the end (delta: -26.1MB). Peak memory consumption was 105.3MB. Max. memory is 16.0GB. [2023-08-26 18:40:42,949 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 362.8MB. Free memory is still 339.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 18:40:42,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.56ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 319.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 18:40:42,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.06ms. Allocated memory is still 362.8MB. Free memory was 319.1MB in the beginning and 317.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 18:40:42,950 INFO L158 Benchmark]: Boogie Preprocessor took 21.75ms. Allocated memory is still 362.8MB. Free memory was 317.1MB in the beginning and 315.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 18:40:42,951 INFO L158 Benchmark]: RCFGBuilder took 360.98ms. Allocated memory is still 362.8MB. Free memory was 315.7MB in the beginning and 302.4MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 18:40:42,951 INFO L158 Benchmark]: TraceAbstraction took 3943.27ms. Allocated memory was 362.8MB in the beginning and 492.8MB in the end (delta: 130.0MB). Free memory was 301.7MB in the beginning and 364.5MB in the end (delta: -62.8MB). Peak memory consumption was 69.6MB. Max. memory is 16.0GB. [2023-08-26 18:40:42,953 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 362.8MB. Free memory is still 339.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 447.56ms. Allocated memory is still 362.8MB. Free memory was 338.0MB in the beginning and 319.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.06ms. Allocated memory is still 362.8MB. Free memory was 319.1MB in the beginning and 317.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.75ms. Allocated memory is still 362.8MB. Free memory was 317.1MB in the beginning and 315.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 360.98ms. Allocated memory is still 362.8MB. Free memory was 315.7MB in the beginning and 302.4MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3943.27ms. Allocated memory was 362.8MB in the beginning and 492.8MB in the end (delta: 130.0MB). Free memory was 301.7MB in the beginning and 364.5MB in the end (delta: -62.8MB). Peak memory consumption was 69.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 68 PlacesBefore, 11 PlacesAfterwards, 68 TransitionsBefore, 8 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, 291 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 291, independent: 291, independent conditional: 0, independent unconditional: 291, 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: 206, independent: 206, independent conditional: 0, independent unconditional: 206, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 291, independent: 85, independent conditional: 0, independent unconditional: 85, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 5 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: 3.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 18:40:42,973 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...