/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/race-1_2b-join.line1072.bpl
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m
[2022-10-04 01:02:33,407 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-10-04 01:02:33,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-10-04 01:02:33,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2022-10-04 01:02:33,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-10-04 01:02:33,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-10-04 01:02:33,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2022-10-04 01:02:33,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-10-04 01:02:33,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-10-04 01:02:33,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf
[2022-10-04 01:02:33,509 INFO L113 SettingsManager]: Loading preferences was successful
[2022-10-04 01:02:33,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-10-04 01:02:33,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-10-04 01:02:33,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-10-04 01:02:33,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-10-04 01:02:33,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-10-04 01:02:33,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-10-04 01:02:33,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-10-04 01:02:33,511 INFO L138 SettingsManager]: * Use SBE=true
[2022-10-04 01:02:33,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * sizeof long=4
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * sizeof long double=12
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-10-04 01:02:33,512 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-10-04 01:02:33,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-10-04 01:02:33,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-10-04 01:02:33,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-10-04 01:02:33,513 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-10-04 01:02:33,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-10-04 01:02:33,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-04 01:02:33,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-10-04 01:02:33,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-10-04 01:02:33,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-10-04 01:02:33,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-10-04 01:02:33,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-10-04 01:02:33,514 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-10-04 01:02:33,515 INFO L138 SettingsManager]: * Independence relation used for POR 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-10-04 01:02:33,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-10-04 01:02:33,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-10-04 01:02:33,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-10-04 01:02:33,744 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-10-04 01:02:33,745 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-10-04 01:02:33,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/race-1_2b-join.line1072.bpl
[2022-10-04 01:02:33,746 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/race-1_2b-join.line1072.bpl'
[2022-10-04 01:02:33,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-10-04 01:02:33,797 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements.
[2022-10-04 01:02:33,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-10-04 01:02:33,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-10-04 01:02:33,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-10-04 01:02:33,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-10-04 01:02:33,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-10-04 01:02:33,856 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-10-04 01:02:33,856 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-10-04 01:02:33,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/1) ...
[2022-10-04 01:02:33,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-04 01:02:33,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-04 01:02:33,896 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)
[2022-10-04 01:02:33,920 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
[2022-10-04 01:02:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-10-04 01:02:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-10-04 01:02:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-10-04 01:02:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-10-04 01:02:33,937 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-10-04 01:02:34,198 INFO L234 CfgBuilder]: Building ICFG
[2022-10-04 01:02:34,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-10-04 01:02:34,500 INFO L275 CfgBuilder]: Performing block encoding
[2022-10-04 01:02:34,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-10-04 01:02:34,509 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-10-04 01:02:34,510 INFO L202 PluginConnector]: Adding new model race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:02:34 BoogieIcfgContainer
[2022-10-04 01:02:34,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-10-04 01:02:34,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-10-04 01:02:34,512 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-10-04 01:02:34,519 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-10-04 01:02:34,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:02:33" (1/2) ...
[2022-10-04 01:02:34,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d166fda and model type race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 01:02:34, skipping insertion in model container
[2022-10-04 01:02:34,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:02:34" (2/2) ...
[2022-10-04 01:02:34,522 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.line1072.bpl
[2022-10-04 01:02:34,527 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-10-04 01:02:34,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-10-04 01:02:34,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-10-04 01:02:34,535 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-10-04 01:02:34,620 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-10-04 01:02:34,689 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-10-04 01:02:34,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-10-04 01:02:34,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-04 01:02:34,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-10-04 01:02:34,718 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-10-04 01:02:34,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-10-04 01:02:34,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ========
[2022-10-04 01:02:34,748 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=PARTIAL_ORDER_FA, 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;@2b1905a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-04 01:02:34,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-10-04 01:02:34,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-04 01:02:34,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-10-04 01:02:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1612749661, now seen corresponding path program 1 times
[2022-10-04 01:02:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-04 01:02:34,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529869996]
[2022-10-04 01:02:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-04 01:02:34,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-04 01:02:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-04 01:02:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-04 01:02:35,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-04 01:02:35,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529869996]
[2022-10-04 01:02:35,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529869996] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-04 01:02:35,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-04 01:02:35,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-10-04 01:02:35,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370346327]
[2022-10-04 01:02:35,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-04 01:02:35,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-10-04 01:02:35,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-04 01:02:35,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-10-04 01:02:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-10-04 01:02:35,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:35,329 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-04 01:02:35,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.5) internal successors, (125), 2 states have internal predecessors, (125), 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)
[2022-10-04 01:02:35,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:35,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-10-04 01:02:35,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] ===
[2022-10-04 01:02:35,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-10-04 01:02:35,361 INFO L85 PathProgramCache]: Analyzing trace with hash 159410651, now seen corresponding path program 1 times
[2022-10-04 01:02:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-04 01:02:35,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029012474]
[2022-10-04 01:02:35,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-04 01:02:35,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-04 01:02:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-10-04 01:02:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-10-04 01:02:35,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-10-04 01:02:35,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029012474]
[2022-10-04 01:02:35,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029012474] provided 1 perfect and 0 imperfect interpolant sequences
[2022-10-04 01:02:35,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-10-04 01:02:35,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-10-04 01:02:35,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742206086]
[2022-10-04 01:02:35,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-10-04 01:02:35,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-10-04 01:02:35,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-10-04 01:02:35,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-10-04 01:02:35,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2022-10-04 01:02:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:35,842 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-10-04 01:02:35,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.125) internal successors, (121), 9 states have internal predecessors, (121), 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)
[2022-10-04 01:02:35,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:35,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-10-04 01:02:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-10-04 01:02:36,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining)
[2022-10-04 01:02:36,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-10-04 01:02:36,100 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1]
[2022-10-04 01:02:36,102 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was SAFE (1/2)
[2022-10-04 01:02:36,116 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-10-04 01:02:36,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-10-04 01:02:36,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-10-04 01:02:36,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-10-04 01:02:36,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2022-10-04 01:02:36,154 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-10-04 01:02:36,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ========
[2022-10-04 01:02:36,154 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=PARTIAL_ORDER_FA, 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;@2b1905a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-04 01:02:36,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-10-04 01:02:36,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining)
[2022-10-04 01:02:36,168 INFO L444 BasicCegarLoop]: Path program histogram: []
[2022-10-04 01:02:36,169 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/2)
[2022-10-04 01:02:36,169 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-10-04 01:02:36,169 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-10-04 01:02:36,172 INFO L202 PluginConnector]: Adding new model race-1_2b-join.line1072.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 01:02:36 BasicIcfg
[2022-10-04 01:02:36,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-10-04 01:02:36,173 INFO L158 Benchmark]: Toolchain (without parser) took 2375.27ms. Allocated memory was 188.7MB in the beginning and 235.9MB in the end (delta: 47.2MB). Free memory was 141.8MB in the beginning and 148.9MB in the end (delta: -7.1MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB.
[2022-10-04 01:02:36,173 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-10-04 01:02:36,173 INFO L158 Benchmark]: Boogie Preprocessor took 54.81ms. Allocated memory is still 188.7MB. Free memory was 141.7MB in the beginning and 138.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-10-04 01:02:36,174 INFO L158 Benchmark]: RCFGBuilder took 655.18ms. Allocated memory is still 188.7MB. Free memory was 138.6MB in the beginning and 146.3MB in the end (delta: -7.7MB). Peak memory consumption was 15.0MB. Max. memory is 8.0GB.
[2022-10-04 01:02:36,174 INFO L158 Benchmark]: TraceAbstraction took 1660.41ms. Allocated memory was 188.7MB in the beginning and 235.9MB in the end (delta: 47.2MB). Free memory was 145.7MB in the beginning and 148.9MB in the end (delta: -3.2MB). Peak memory consumption was 43.9MB. Max. memory is 8.0GB.
[2022-10-04 01:02:36,175 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 0.11ms. Allocated memory is still 188.7MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Preprocessor took 54.81ms. Allocated memory is still 188.7MB. Free memory was 141.7MB in the beginning and 138.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 655.18ms. Allocated memory is still 188.7MB. Free memory was 138.6MB in the beginning and 146.3MB in the end (delta: -7.7MB). Peak memory consumption was 15.0MB. Max. memory is 8.0GB.
* TraceAbstraction took 1660.41ms. Allocated memory was 188.7MB in the beginning and 235.9MB in the end (delta: 47.2MB). Free memory was 145.7MB in the beginning and 148.9MB in the end (delta: -3.2MB). Peak memory consumption was 43.9MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Independence relation #1 benchmarks
IndependenceRelationWithAbstraction.Independence Queries: [ total: 40, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 687, positive: 676, positive conditional: 676, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 676, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 602, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 676, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 602, unknown conditional: 0, unknown unconditional: 602] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 4, Statistics for Abstraction:
- StatisticsResult: Independence relation #2 benchmarks
IndependenceRelationWithAbstraction.Independence Queries: [ total: 53, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 687, positive: 676, positive conditional: 676, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 676, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 602, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 676, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 602, unknown conditional: 0, unknown unconditional: 602] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 7, Statistics for Abstraction:
- StatisticsResult: Independence relation #3 benchmarks
IndependenceRelationWithAbstraction.Independence Queries: [ total: 594, positive: 590, positive conditional: 590, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 687, positive: 676, positive conditional: 676, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 676, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 602, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 676, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 602, unknown conditional: 0, unknown unconditional: 602] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 602, Positive conditional cache size: 0, Positive unconditional cache size: 602, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 11, Statistics for Abstraction:
- StatisticsResult: Independence relation #1 benchmarks
IndependenceRelationWithAbstraction.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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, Independence queries for same thread: 1, Statistics for Abstraction:
- PositiveResult [Line: 1072]: assertion always holds
For all program executions holds that assertion always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances
CFG has 3 procedures, 212 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 653 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
- StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances
CFG has 3 procedures, 212 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-10-04 01:02:36,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0
[2022-10-04 01:02:36,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0
[2022-10-04 01:02:36,649 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...