/usr/bin/java -Xmx8000000000 -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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/ThyssenKruppRelegation.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:37:42,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:37:42,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:37:42,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:37:42,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:37:42,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:37:42,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:37:42,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 18:37:43,000 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:37:43,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:37:43,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:37:43,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:37:43,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:37:43,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:37:43,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:37:43,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:37:43,002 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:37:43,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:37:43,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:37:43,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:37:43,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:37:43,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:37:43,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:37:43,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:37:43,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:37:43,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:37:43,231 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 18:37:43,233 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 18:37:43,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThyssenKruppRelegation.bpl [2022-03-03 18:37:43,234 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThyssenKruppRelegation.bpl' [2022-03-03 18:37:43,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:37:43,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 18:37:43,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:37:43,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:37:43,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:37:43,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,265 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 18:37:43,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:37:43,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:37:43,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:37:43,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:37:43,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:37:43,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:37:43,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:37:43,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:37:43,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/1) ... [2022-03-03 18:37:43,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:37:43,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:37:43,299 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) [2022-03-03 18:37:43,314 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 [2022-03-03 18:37:43,327 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2022-03-03 18:37:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-03 18:37:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-03 18:37:43,327 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 18:37:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:37:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:37:43,328 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:37:43,345 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:37:43,346 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:37:43,386 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:37:43,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:37:43,393 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 18:37:43,395 INFO L202 PluginConnector]: Adding new model ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:37:43 BoogieIcfgContainer [2022-03-03 18:37:43,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:37:43,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:37:43,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:37:43,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:37:43,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:37:43" (1/2) ... [2022-03-03 18:37:43,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3565a5 and model type ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:37:43, skipping insertion in model container [2022-03-03 18:37:43,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:37:43" (2/2) ... [2022-03-03 18:37:43,403 INFO L111 eAbstractionObserver]: Analyzing ICFG ThyssenKruppRelegation.bpl [2022-03-03 18:37:43,409 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:37:43,410 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:37:43,410 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 18:37:43,410 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:37:43,437 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-03 18:37:43,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:37:43,483 INFO L339 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:37:43,483 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-03 18:37:43,491 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 7 transitions, 22 flow [2022-03-03 18:37:43,499 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-03-03 18:37:43,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-03-03 18:37:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-03-03 18:37:43,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:37:43,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2022-03-03 18:37:43,507 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 18:37:43,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:37:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1403, now seen corresponding path program 1 times [2022-03-03 18:37:43,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:37:43,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26231584] [2022-03-03 18:37:43,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:37:43,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:37:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:37:43,567 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 18:37:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:37:43,583 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 18:37:43,584 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 18:37:43,585 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-03 18:37:43,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-03 18:37:43,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:37:43,591 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-03 18:37:43,594 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 18:37:43,594 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:37:43,600 INFO L202 PluginConnector]: Adding new model ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:37:43 BasicIcfg [2022-03-03 18:37:43,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:37:43,601 INFO L158 Benchmark]: Toolchain (without parser) took 352.46ms. Allocated memory is still 210.8MB. Free memory was 175.0MB in the beginning and 151.7MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-03-03 18:37:43,602 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 210.8MB. Free memory was 176.0MB in the beginning and 175.9MB in the end (delta: 72.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:37:43,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.34ms. Allocated memory is still 210.8MB. Free memory was 174.9MB in the beginning and 173.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:37:43,603 INFO L158 Benchmark]: Boogie Preprocessor took 9.93ms. Allocated memory is still 210.8MB. Free memory was 173.5MB in the beginning and 172.6MB in the end (delta: 846.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:37:43,604 INFO L158 Benchmark]: RCFGBuilder took 117.43ms. Allocated memory is still 210.8MB. Free memory was 172.5MB in the beginning and 165.4MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-03 18:37:43,607 INFO L158 Benchmark]: TraceAbstraction took 203.50ms. Allocated memory is still 210.8MB. Free memory was 164.9MB in the beginning and 151.7MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-03 18:37:43,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 210.8MB. Free memory was 176.0MB in the beginning and 175.9MB in the end (delta: 72.2kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.34ms. Allocated memory is still 210.8MB. Free memory was 174.9MB in the beginning and 173.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.93ms. Allocated memory is still 210.8MB. Free memory was 173.5MB in the beginning and 172.6MB in the end (delta: 846.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 117.43ms. Allocated memory is still 210.8MB. Free memory was 172.5MB in the beginning and 165.4MB in the end (delta: 7.2MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 203.50ms. Allocated memory is still 210.8MB. Free memory was 164.9MB in the beginning and 151.7MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: assertion can be violated assertion can be violated We found a FailurePath: [L15] FORK 0 fork 1 foo(); [L16] 0 assert false; - UnprovableResult [Line: 13]: 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, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred 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, 2 NumberOfCodeBlocks, 2 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! [2022-03-03 18:37:43,642 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...