/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-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 18:14:50,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 18:14:50,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 18:14:50,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 18:14:50,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-07 18:14:50,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-07 18:14:50,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-07 18:14:50,975 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-POR-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-08-07 18:14:51,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 18:14:51,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 18:14:51,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 18:14:51,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 18:14:51,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 18:14:51,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 18:14:51,007 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 18:14:51,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 18:14:51,007 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 18:14:51,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 18:14:51,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 18:14:51,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 18:14:51,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 18:14:51,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 18:14:51,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 18:14:51,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 18:14:51,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 18:14:51,010 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 18:14:51,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 18:14:51,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 18:14:51,011 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-07 18:14:51,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 18:14:51,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 18:14:51,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 18:14:51,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 18:14:51,255 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 18:14:51,256 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 18:14:51,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2021-08-07 18:14:51,257 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-08-07 18:14:51,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 18:14:51,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 18:14:51,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 18:14:51,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 18:14:51,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 18:14:51,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 18:14:51,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 18:14:51,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 18:14:51,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 18:14:51,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 18:14:51,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 18:14:51,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 18:14:51,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 18:14:51,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/1) ... [2021-08-07 18:14:51,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 18:14:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:51,346 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) [2021-08-07 18:14:51,377 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 [2021-08-07 18:14:51,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 18:14:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 18:14:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 18:14:51,399 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 18:14:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 18:14:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 18:14:51,399 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 18:14:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 18:14:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 18:14:51,400 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 18:14:51,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 18:14:51,560 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 18:14:51,561 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 06:14:51 BoogieIcfgContainer [2021-08-07 18:14:51,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 18:14:51,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 18:14:51,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 18:14:51,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 18:14:51,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 06:14:51" (1/2) ... [2021-08-07 18:14:51,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d268e28 and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 06:14:51, skipping insertion in model container [2021-08-07 18:14:51,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 06:14:51" (2/2) ... [2021-08-07 18:14:51,566 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-08-07 18:14:51,569 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 18:14:51,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 18:14:51,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 18:14:51,570 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 18:14:51,617 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-07 18:14:51,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 18:14:51,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:51,647 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) [2021-08-07 18:14:51,648 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 [2021-08-07 18:14:51,690 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 18:14:51,696 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-07 18:14:51,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-07 18:14:51,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:14:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:14:51,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1482196669, now seen corresponding path program 1 times [2021-08-07 18:14:51,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:14:51,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773505478] [2021-08-07 18:14:51,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:14:51,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:14:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:14:51,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:14:51,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:14:51,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773505478] [2021-08-07 18:14:51,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773505478] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:51,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290836186] [2021-08-07 18:14:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:14:51,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:51,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:14:52,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 18:14:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:14:52,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-07 18:14:52,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:14:52,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-08-07 18:14:52,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-08-07 18:14:52,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:14:52,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290836186] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:52,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 18:14:52,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-07 18:14:52,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597839403] [2021-08-07 18:14:52,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 18:14:52,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 18:14:52,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 18:14:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-07 18:14:52,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:52,320 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 18:14:52,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-08-07 18:14:52,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:52,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 18:14:52,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-08-07 18:14:52,573 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:14:52,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:14:52,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1587881921, now seen corresponding path program 2 times [2021-08-07 18:14:52,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:14:52,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983204692] [2021-08-07 18:14:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:14:52,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:14:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:14:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 18:14:52,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:14:52,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983204692] [2021-08-07 18:14:52,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983204692] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:52,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021814944] [2021-08-07 18:14:52,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 18:14:52,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:52,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:52,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:14:52,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 18:14:52,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 18:14:52,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 18:14:52,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-07 18:14:52,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:14:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 18:14:53,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021814944] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:53,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 18:14:53,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-08-07 18:14:53,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77234940] [2021-08-07 18:14:53,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-07 18:14:53,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 18:14:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-07 18:14:53,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-08-07 18:14:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:53,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 18:14:53,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 14 states have internal predecessors, (34), 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) [2021-08-07 18:14:53,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:53,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 18:14:53,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-08-07 18:14:53,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:53,457 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:14:53,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:14:53,457 INFO L82 PathProgramCache]: Analyzing trace with hash 882512315, now seen corresponding path program 3 times [2021-08-07 18:14:53,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:14:53,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116021349] [2021-08-07 18:14:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:14:53,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:14:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:14:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:14:53,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:14:53,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116021349] [2021-08-07 18:14:53,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116021349] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:53,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17910484] [2021-08-07 18:14:53,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 18:14:53,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:53,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:53,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:14:53,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 18:14:53,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-07 18:14:53,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 18:14:53,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-07 18:14:53,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:14:53,938 INFO L354 Elim1Store]: treesize reduction 97, result has 24.8 percent of original size [2021-08-07 18:14:53,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 61 [2021-08-07 18:14:53,968 INFO L354 Elim1Store]: treesize reduction 21, result has 57.1 percent of original size [2021-08-07 18:14:53,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 53 [2021-08-07 18:14:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:14:54,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17910484] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:54,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 18:14:54,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-08-07 18:14:54,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720680362] [2021-08-07 18:14:54,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-07 18:14:54,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 18:14:54,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-07 18:14:54,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-08-07 18:14:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:54,061 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 18:14:54,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 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) [2021-08-07 18:14:54,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:54,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 18:14:54,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:14:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:14:54,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-07 18:14:54,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:54,404 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:14:54,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:14:54,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1080605235, now seen corresponding path program 4 times [2021-08-07 18:14:54,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:14:54,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028885417] [2021-08-07 18:14:54,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:14:54,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:14:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:14:54,579 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 26 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 18:14:54,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:14:54,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028885417] [2021-08-07 18:14:54,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028885417] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:54,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623395000] [2021-08-07 18:14:54,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 18:14:54,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:54,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:54,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:14:54,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 18:14:54,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 18:14:54,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 18:14:54,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-07 18:14:54,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:14:55,164 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 18:14:55,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623395000] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:55,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 18:14:55,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2021-08-07 18:14:55,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991851920] [2021-08-07 18:14:55,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-07 18:14:55,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 18:14:55,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-07 18:14:55,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2021-08-07 18:14:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:55,168 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 18:14:55,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 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) [2021-08-07 18:14:55,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:55,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:14:55,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:14:55,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:14:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:14:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:14:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:14:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-07 18:14:55,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 18:14:55,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:55,994 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:14:55,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:14:55,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1239186799, now seen corresponding path program 5 times [2021-08-07 18:14:55,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:14:55,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562038366] [2021-08-07 18:14:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:14:55,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:14:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:14:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:14:56,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:14:56,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562038366] [2021-08-07 18:14:56,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562038366] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:14:56,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779955988] [2021-08-07 18:14:56,091 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 18:14:56,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:14:56,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:14:56,093 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:14:56,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 18:14:56,192 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-07 18:14:56,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 18:14:56,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-08-07 18:14:56,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:14:56,552 INFO L354 Elim1Store]: treesize reduction 48, result has 60.3 percent of original size [2021-08-07 18:14:56,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 118 treesize of output 121 [2021-08-07 18:15:31,258 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-07 18:15:31,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 291 treesize of output 214 [2021-08-07 18:15:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:15:31,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779955988] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:15:31,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 18:15:31,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-08-07 18:15:31,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993430580] [2021-08-07 18:15:31,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-07 18:15:31,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 18:15:31,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-07 18:15:31,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-08-07 18:15:31,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:15:31,850 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 18:15:31,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 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) [2021-08-07 18:15:31,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:15:31,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:15:31,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:15:31,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-08-07 18:15:31,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:15:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:15:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:15:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:15:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-07 18:15:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-07 18:15:32,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-07 18:15:32,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:15:32,189 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:15:32,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:15:32,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1451936791, now seen corresponding path program 6 times [2021-08-07 18:15:32,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:15:32,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943597132] [2021-08-07 18:15:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:15:32,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:15:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:15:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 63 proven. 52 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 18:15:32,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:15:32,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943597132] [2021-08-07 18:15:32,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943597132] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:15:32,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681226053] [2021-08-07 18:15:32,485 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 18:15:32,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:15:32,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:15:32,485 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:15:32,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 18:15:32,698 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-08-07 18:15:32,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 18:15:32,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-07 18:15:32,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:15:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 49 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 18:15:33,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681226053] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:15:33,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 18:15:33,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-08-07 18:15:33,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175477496] [2021-08-07 18:15:33,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-08-07 18:15:33,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 18:15:33,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-08-07 18:15:33,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1038, Unknown=0, NotChecked=0, Total=1260 [2021-08-07 18:15:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:15:33,400 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 18:15:33,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 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) [2021-08-07 18:15:33,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:15:33,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:15:33,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:15:33,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-08-07 18:15:33,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-07 18:15:33,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 18:15:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 18:15:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-07 18:15:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 18:15:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-07 18:15:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-07 18:15:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-07 18:15:34,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 18:15:34,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:15:34,533 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-07 18:15:34,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 18:15:34,533 INFO L82 PathProgramCache]: Analyzing trace with hash -73692381, now seen corresponding path program 7 times [2021-08-07 18:15:34,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 18:15:34,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720110368] [2021-08-07 18:15:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 18:15:34,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 18:15:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:15:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-07 18:15:34,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 18:15:34,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720110368] [2021-08-07 18:15:34,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720110368] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 18:15:34,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372409800] [2021-08-07 18:15:34,685 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 18:15:34,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 18:15:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 18:15:34,686 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 18:15:34,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 18:15:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 18:15:34,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 57 conjunts are in the unsatisfiable core [2021-08-07 18:15:34,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 18:15:35,736 INFO L354 Elim1Store]: treesize reduction 128, result has 55.7 percent of original size [2021-08-07 18:15:35,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 229 treesize of output 233 Received shutdown request... [2021-08-07 18:27:39,804 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-08-07 18:27:39,805 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 18:27:39,810 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 18:27:39,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-08-07 18:27:39,829 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 18:27:39,848 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 18:27:40,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-07 18:27:40,006 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 9,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 14ms.. [2021-08-07 18:27:40,009 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 18:27:40,009 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 18:27:40,014 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 18:27:40,015 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 18:27:40,016 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 06:27:40 BasicIcfg [2021-08-07 18:27:40,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 18:27:40,016 INFO L168 Benchmark]: Toolchain (without parser) took 768734.50 ms. Allocated memory was 203.4 MB in the beginning and 511.7 MB in the end (delta: 308.3 MB). Free memory was 183.1 MB in the beginning and 235.9 MB in the end (delta: -52.7 MB). Peak memory consumption was 317.0 MB. Max. memory is 8.0 GB. [2021-08-07 18:27:40,016 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 203.4 MB. Free memory was 184.2 MB in the beginning and 184.2 MB in the end (delta: 65.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 18:27:40,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.57 ms. Allocated memory is still 203.4 MB. Free memory was 183.0 MB in the beginning and 181.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 18:27:40,017 INFO L168 Benchmark]: Boogie Preprocessor took 14.24 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 180.6 MB in the end (delta: 936.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 18:27:40,017 INFO L168 Benchmark]: RCFGBuilder took 240.76 ms. Allocated memory is still 203.4 MB. Free memory was 180.6 MB in the beginning and 168.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-07 18:27:40,017 INFO L168 Benchmark]: TraceAbstraction took 768453.20 ms. Allocated memory was 203.4 MB in the beginning and 511.7 MB in the end (delta: 308.3 MB). Free memory was 167.6 MB in the beginning and 235.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 301.2 MB. Max. memory is 8.0 GB. [2021-08-07 18:27:40,017 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 0.11 ms. Allocated memory is still 203.4 MB. Free memory was 184.2 MB in the beginning and 184.2 MB in the end (delta: 65.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.57 ms. Allocated memory is still 203.4 MB. Free memory was 183.0 MB in the beginning and 181.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.24 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 180.6 MB in the end (delta: 936.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 240.76 ms. Allocated memory is still 203.4 MB. Free memory was 180.6 MB in the beginning and 168.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 768453.20 ms. Allocated memory was 203.4 MB in the beginning and 511.7 MB in the end (delta: 308.3 MB). Free memory was 167.6 MB in the beginning and 235.9 MB in the end (delta: -68.2 MB). Peak memory consumption was 301.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 459, positive: 323, positive conditional: 237, positive unconditional: 86, negative: 136, negative conditional: 134, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 364, positive: 323, positive conditional: 237, positive unconditional: 86, negative: 41, negative conditional: 39, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 364, positive: 323, positive conditional: 237, positive unconditional: 86, negative: 41, negative conditional: 39, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 522, positive: 323, positive conditional: 222, positive unconditional: 101, negative: 199, negative conditional: 158, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 522, positive: 323, positive conditional: 134, positive unconditional: 189, negative: 199, negative conditional: 111, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 522, positive: 323, positive conditional: 134, positive unconditional: 189, negative: 199, negative conditional: 111, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 111, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 36, negative conditional: 34, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 111, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 36, negative conditional: 34, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 146, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 146, negative conditional: 84, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 522, positive: 248, positive conditional: 134, positive unconditional: 114, negative: 163, negative conditional: 77, negative unconditional: 86, unknown: 111, unknown conditional: 34, unknown unconditional: 77] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 36, Negative conditional cache size: 34, Negative unconditional cache size: 2, Eliminated conditions: 135, Maximal queried relation: 6, Independence queries for same thread: 95 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 83, Number of persistent set computation: 20, Number of trivial persistent sets: 10, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 88, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 459, positive: 323, positive conditional: 237, positive unconditional: 86, negative: 136, negative conditional: 134, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 364, positive: 323, positive conditional: 237, positive unconditional: 86, negative: 41, negative conditional: 39, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 364, positive: 323, positive conditional: 237, positive unconditional: 86, negative: 41, negative conditional: 39, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 522, positive: 323, positive conditional: 222, positive unconditional: 101, negative: 199, negative conditional: 158, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 522, positive: 323, positive conditional: 134, positive unconditional: 189, negative: 199, negative conditional: 111, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 522, positive: 323, positive conditional: 134, positive unconditional: 189, negative: 199, negative conditional: 111, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 111, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 36, negative conditional: 34, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 111, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 36, negative conditional: 34, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 146, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 146, negative conditional: 84, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 522, positive: 248, positive conditional: 134, positive unconditional: 114, negative: 163, negative conditional: 77, negative unconditional: 86, unknown: 111, unknown conditional: 34, unknown unconditional: 77] , Statistics on independence cache: Total cache size (in pairs): 111, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 36, Negative conditional cache size: 34, Negative unconditional cache size: 2, Eliminated conditions: 135, Maximal queried relation: 6, Independence queries for same thread: 95 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 9,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 14ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 9,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 14ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 9,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 11 for 14ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 768369.6ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 2162.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 39.1ms SsaConstructionTime, 157.6ms SatisfiabilityAnalysisTime, 38611.6ms InterpolantComputationTime, 364 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 352 ConstructedInterpolants, 10 QuantifiedInterpolants, 6010 SizeOfPredicates, 18 NumberOfNonLiveVariables, 511 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 180/542 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 could not prove your program: Timeout Completed graceful shutdown