/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking IA --traceabstraction.criterion.for.conditional.commutativity.checking DEFAULT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-3774817-m [2024-04-06 12:20:31,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-04-06 12:20:31,738 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-04-06 12:20:31,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-04-06 12:20:31,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-04-06 12:20:31,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-04-06 12:20:31,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-04-06 12:20:31,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-04-06 12:20:31,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-04-06 12:20:31,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-04-06 12:20:31,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-04-06 12:20:31,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-04-06 12:20:31,779 INFO L153 SettingsManager]: * Use SBE=true [2024-04-06 12:20:31,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-04-06 12:20:31,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-04-06 12:20:31,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-04-06 12:20:31,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-04-06 12:20:31,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-04-06 12:20:31,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-04-06 12:20:31,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-04-06 12:20:31,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-04-06 12:20:31,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-04-06 12:20:31,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-04-06 12:20:31,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-04-06 12:20:31,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-04-06 12:20:31,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-04-06 12:20:31,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-04-06 12:20:31,786 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-04-06 12:20:31,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-04-06 12:20:31,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-06 12:20:31,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-04-06 12:20:31,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-04-06 12:20:31,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-04-06 12:20:31,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-04-06 12:20:31,788 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-04-06 12:20:31,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-04-06 12:20:31,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-04-06 12:20:31,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-04-06 12:20:31,789 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-04-06 12:20:31,789 INFO L153 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/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> IA Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT [2024-04-06 12:20:32,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-04-06 12:20:32,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-04-06 12:20:32,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-04-06 12:20:32,111 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-04-06 12:20:32,113 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-04-06 12:20:32,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl [2024-04-06 12:20:32,114 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons-eq.wvr.bpl' [2024-04-06 12:20:32,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-04-06 12:20:32,164 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-04-06 12:20:32,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-04-06 12:20:32,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-04-06 12:20:32,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-04-06 12:20:32,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,206 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-04-06 12:20:32,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-04-06 12:20:32,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-04-06 12:20:32,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-04-06 12:20:32,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-04-06 12:20:32,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-04-06 12:20:32,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-04-06 12:20:32,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-04-06 12:20:32,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-04-06 12:20:32,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/1) ... [2024-04-06 12:20:32,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-06 12:20:32,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-06 12:20:32,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-04-06 12:20:32,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-04-06 12:20:32,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-04-06 12:20:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-04-06 12:20:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-04-06 12:20:32,317 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-04-06 12:20:32,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-04-06 12:20:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-04-06 12:20:32,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-04-06 12:20:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-04-06 12:20:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-04-06 12:20:32,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2024-04-06 12:20:32,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-04-06 12:20:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-04-06 12:20:32,319 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-04-06 12:20:32,373 INFO L241 CfgBuilder]: Building ICFG [2024-04-06 12:20:32,376 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-04-06 12:20:32,504 INFO L282 CfgBuilder]: Performing block encoding [2024-04-06 12:20:32,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-04-06 12:20:32,538 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2024-04-06 12:20:32,539 INFO L201 PluginConnector]: Adding new model prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 12:20:32 BoogieIcfgContainer [2024-04-06 12:20:32,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-04-06 12:20:32,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-04-06 12:20:32,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-04-06 12:20:32,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-04-06 12:20:32,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.04 12:20:32" (1/2) ... [2024-04-06 12:20:32,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296eb1d6 and model type prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 12:20:32, skipping insertion in model container [2024-04-06 12:20:32,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons-eq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 12:20:32" (2/2) ... [2024-04-06 12:20:32,548 INFO L112 eAbstractionObserver]: Analyzing ICFG prod-cons-eq.wvr.bpl [2024-04-06 12:20:32,557 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-04-06 12:20:32,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-04-06 12:20:32,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-04-06 12:20:32,565 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-04-06 12:20:32,614 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-04-06 12:20:32,657 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-04-06 12:20:32,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-04-06 12:20:32,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-06 12:20:32,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-04-06 12:20:32,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-04-06 12:20:32,695 INFO L184 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-04-06 12:20:32,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:32,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-04-06 12:20:32,716 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=LoopHeads, 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;@5b130e78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=IA, mConComCheckerCriterion=DEFAULT, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123 [2024-04-06 12:20:32,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-04-06 12:20:32,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:32,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1567128055, now seen corresponding path program 1 times [2024-04-06 12:20:32,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:32,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904920009] [2024-04-06 12:20:32,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:32,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:32,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:32,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904920009] [2024-04-06 12:20:32,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904920009] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-06 12:20:32,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-06 12:20:32,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-04-06 12:20:32,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263858241] [2024-04-06 12:20:32,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-06 12:20:32,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-04-06 12:20:32,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-04-06 12:20:32,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-04-06 12:20:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:32,985 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:32,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-04-06 12:20:32,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:33,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:33,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-04-06 12:20:33,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:33,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:33,103 INFO L85 PathProgramCache]: Analyzing trace with hash -95866558, now seen corresponding path program 1 times [2024-04-06 12:20:33,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:33,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544115227] [2024-04-06 12:20:33,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:33,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:33,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:33,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544115227] [2024-04-06 12:20:33,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544115227] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-06 12:20:33,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-06 12:20:33,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-04-06 12:20:33,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931379938] [2024-04-06 12:20:33,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-06 12:20:33,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-04-06 12:20:33,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:33,360 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 1 times [2024-04-06 12:20:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:33,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:33,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-06 12:20:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:33,611 INFO L378 Elim1Store]: Elim1 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 3 treesize of output 1 [2024-04-06 12:20:33,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1018798286, now seen corresponding path program 1 times [2024-04-06 12:20:33,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:33,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:33,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:33,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-04-06 12:20:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-04-06 12:20:33,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:33,724 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:33,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-04-06 12:20:33,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:33,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:33,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:33,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1 [2024-04-06 12:20:33,788 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:33,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:33,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2006859775, now seen corresponding path program 1 times [2024-04-06 12:20:33,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:33,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323579380] [2024-04-06 12:20:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-04-06 12:20:33,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:33,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323579380] [2024-04-06 12:20:33,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323579380] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-06 12:20:33,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-06 12:20:33,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-04-06 12:20:33,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034657565] [2024-04-06 12:20:33,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-06 12:20:33,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-04-06 12:20:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:33,970 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:33,995 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 2 times [2024-04-06 12:20:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:33,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:34,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-06 12:20:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:34,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-04-06 12:20:34,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-04-06 12:20:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:34,108 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:34,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-04-06 12:20:34,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:34,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:34,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-04-06 12:20:34,144 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:34,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash -40542719, now seen corresponding path program 1 times [2024-04-06 12:20:34,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:34,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972867380] [2024-04-06 12:20:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:34,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:34,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972867380] [2024-04-06 12:20:34,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972867380] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-06 12:20:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018625299] [2024-04-06 12:20:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:34,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-06 12:20:34,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-06 12:20:34,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-06 12:20:34,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-04-06 12:20:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:34,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2024-04-06 12:20:34,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-06 12:20:34,471 INFO L378 Elim1Store]: Elim1 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 17 treesize of output 13 [2024-04-06 12:20:34,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 7 [2024-04-06 12:20:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:34,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-06 12:20:34,529 INFO L349 Elim1Store]: treesize reduction 4, result has 73.3 percent of original size [2024-04-06 12:20:34,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2024-04-06 12:20:34,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:34,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2024-04-06 12:20:34,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:34,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2024-04-06 12:20:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:34,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018625299] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-06 12:20:34,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-06 12:20:34,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 6 [2024-04-06 12:20:34,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779942541] [2024-04-06 12:20:34,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-06 12:20:34,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-04-06 12:20:34,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:34,714 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:34,761 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 3 times [2024-04-06 12:20:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:34,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:34,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:34,878 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:34,931 INFO L378 Elim1Store]: Elim1 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 3 treesize of output 1 [2024-04-06 12:20:34,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1018798286, now seen corresponding path program 2 times [2024-04-06 12:20:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:34,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:34,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:34,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:35,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-04-06 12:20:35,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-04-06 12:20:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:35,007 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:35,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 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) [2024-04-06 12:20:35,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:35,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:35,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:35,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-06 12:20:35,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-04-06 12:20:35,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2024-04-06 12:20:35,349 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:35,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:35,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1940781438, now seen corresponding path program 2 times [2024-04-06 12:20:35,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:35,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133510647] [2024-04-06 12:20:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:35,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:35,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:35,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133510647] [2024-04-06 12:20:35,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133510647] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-06 12:20:35,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762177223] [2024-04-06 12:20:35,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-06 12:20:35,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-06 12:20:35,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-06 12:20:35,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-06 12:20:35,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-04-06 12:20:35,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-06 12:20:35,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-06 12:20:35,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2024-04-06 12:20:35,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-06 12:20:35,572 INFO L378 Elim1Store]: Elim1 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 23 treesize of output 17 [2024-04-06 12:20:35,592 INFO L378 Elim1Store]: Elim1 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 27 treesize of output 19 [2024-04-06 12:20:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:35,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-06 12:20:35,646 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-04-06 12:20:35,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 9 [2024-04-06 12:20:35,654 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-04-06 12:20:35,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7 treesize of output 7 [2024-04-06 12:20:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:35,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762177223] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-06 12:20:35,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-06 12:20:35,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-04-06 12:20:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713610303] [2024-04-06 12:20:35,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-06 12:20:35,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-04-06 12:20:35,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:35,724 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 4 times [2024-04-06 12:20:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:35,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:35,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-06 12:20:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:35,827 INFO L378 Elim1Store]: Elim1 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 6 treesize of output 4 [2024-04-06 12:20:35,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1018798286, now seen corresponding path program 3 times [2024-04-06 12:20:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:35,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:35,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-04-06 12:20:35,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-04-06 12:20:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:35,922 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:35,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 11 states have internal predecessors, (44), 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) [2024-04-06 12:20:35,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:35,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:35,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:35,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-06 12:20:35,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-06 12:20:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-04-06 12:20:36,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-04-06 12:20:36,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15 [2024-04-06 12:20:36,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:36,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:36,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1902954809, now seen corresponding path program 3 times [2024-04-06 12:20:36,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:36,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242738715] [2024-04-06 12:20:36,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:36,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-04-06 12:20:36,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:36,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242738715] [2024-04-06 12:20:36,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242738715] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-06 12:20:36,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-06 12:20:36,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-04-06 12:20:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961114811] [2024-04-06 12:20:36,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-06 12:20:36,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-04-06 12:20:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:36,473 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:36,494 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 5 times [2024-04-06 12:20:36,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:36,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:36,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-04-06 12:20:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-04-06 12:20:36,559 INFO L378 Elim1Store]: Elim1 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 3 treesize of output 1 [2024-04-06 12:20:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1018798286, now seen corresponding path program 4 times [2024-04-06 12:20:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:36,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-04-06 12:20:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-04-06 12:20:36,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:36,634 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:36,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 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) [2024-04-06 12:20:36,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:36,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-06 12:20:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-04-06 12:20:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-04-06 12:20:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-04-06 12:20:36,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:36,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-04-06 12:20:36,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:36,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1764591996, now seen corresponding path program 4 times [2024-04-06 12:20:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:36,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770567832] [2024-04-06 12:20:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770567832] [2024-04-06 12:20:36,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770567832] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-06 12:20:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615405449] [2024-04-06 12:20:36,839 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-04-06 12:20:36,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-06 12:20:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-06 12:20:36,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-06 12:20:36,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-04-06 12:20:36,882 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-04-06 12:20:36,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-06 12:20:36,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2024-04-06 12:20:36,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-06 12:20:36,944 INFO L378 Elim1Store]: Elim1 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 23 treesize of output 17 [2024-04-06 12:20:36,972 INFO L378 Elim1Store]: Elim1 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 27 treesize of output 19 [2024-04-06 12:20:36,997 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:36,997 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-06 12:20:37,054 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-04-06 12:20:37,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 9 [2024-04-06 12:20:37,063 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-04-06 12:20:37,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7 treesize of output 7 [2024-04-06 12:20:37,070 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615405449] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-06 12:20:37,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-06 12:20:37,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-04-06 12:20:37,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147038743] [2024-04-06 12:20:37,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-06 12:20:37,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-04-06 12:20:37,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:37,127 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 6 times [2024-04-06 12:20:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:37,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:37,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:37,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:37,233 INFO L378 Elim1Store]: Elim1 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 6 treesize of output 4 [2024-04-06 12:20:37,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1018798286, now seen corresponding path program 5 times [2024-04-06 12:20:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:37,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:37,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:37,347 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:37,439 INFO L378 Elim1Store]: Elim1 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 3 treesize of output 1 [2024-04-06 12:20:37,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-04-06 12:20:37,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-04-06 12:20:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:37,463 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-06 12:20:37,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 states have internal predecessors, (53), 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) [2024-04-06 12:20:37,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:37,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:37,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:37,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-04-06 12:20:37,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-04-06 12:20:37,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:37,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-06 12:20:37,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-04-06 12:20:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-06 12:20:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-04-06 12:20:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-04-06 12:20:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-04-06 12:20:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-04-06 12:20:37,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-04-06 12:20:38,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-06 12:20:38,042 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-04-06 12:20:38,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-06 12:20:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash -805330951, now seen corresponding path program 5 times [2024-04-06 12:20:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-06 12:20:38,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876589111] [2024-04-06 12:20:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:38,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-04-06 12:20:38,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-06 12:20:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876589111] [2024-04-06 12:20:38,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876589111] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-06 12:20:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280313098] [2024-04-06 12:20:38,287 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-04-06 12:20:38,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-06 12:20:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-06 12:20:38,288 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-06 12:20:38,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-04-06 12:20:38,334 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-04-06 12:20:38,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-06 12:20:38,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2024-04-06 12:20:38,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-06 12:20:38,498 INFO L378 Elim1Store]: Elim1 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 [2024-04-06 12:20:38,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:38,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2024-04-06 12:20:38,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:38,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 26 [2024-04-06 12:20:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:38,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-06 12:20:38,971 INFO L349 Elim1Store]: treesize reduction 4, result has 95.9 percent of original size [2024-04-06 12:20:38,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 29 treesize of output 104 [2024-04-06 12:20:39,606 INFO L378 Elim1Store]: Elim1 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 11 [2024-04-06 12:20:39,610 INFO L378 Elim1Store]: Elim1 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 11 [2024-04-06 12:20:39,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:39,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2024-04-06 12:20:42,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:42,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 87 treesize of output 345 [2024-04-06 12:20:42,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:42,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 145 treesize of output 285 [2024-04-06 12:20:44,098 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:44,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280313098] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-06 12:20:44,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-06 12:20:44,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2024-04-06 12:20:44,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290383348] [2024-04-06 12:20:44,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-06 12:20:44,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-04-06 12:20:44,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-06 12:20:44,150 INFO L378 Elim1Store]: Elim1 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 8 treesize of output 6 [2024-04-06 12:20:44,205 INFO L85 PathProgramCache]: Analyzing trace with hash 90445517, now seen corresponding path program 7 times [2024-04-06 12:20:44,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:44,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:44,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-06 12:20:44,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-06 12:20:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-06 12:20:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-06 12:20:44,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 10 treesize of output 4 [2024-04-06 12:20:44,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-06 12:20:44,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2024-04-06 12:20:44,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-04-06 12:20:44,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25,SelfDestructingSolverStorable26,SelfDestructingSolverStorable27 [2024-04-06 12:20:44,656 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Function c_aux_v_state22_58 is already defined. at de.uni_freiburg.informatik.ultimate.logic.NoopScript.declareFun(NoopScript.java:229) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.declareFun(Scriptor.java:115) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.declareFun(HistoryRecordingScript.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.declareFun(ManagedScript.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:117) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:320) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition(TransFormulaUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceConditionGenerator.compose(SemanticIndependenceConditionGenerator.java:178) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceConditionGenerator.withGuard(SemanticIndependenceConditionGenerator.java:186) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceConditionGenerator.generateCondition(SemanticIndependenceConditionGenerator.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.ConditionalCommutativityChecker.checkConditionalCommutativity(ConditionalCommutativityChecker.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.ConditionalCommutativityInterpolantProvider.checkTransitions(ConditionalCommutativityInterpolantProvider.java:172) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.ConditionalCommutativityInterpolantProvider.checkState(ConditionalCommutativityInterpolantProvider.java:161) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.ConditionalCommutativityInterpolantProvider.getInterpolants(ConditionalCommutativityInterpolantProvider.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.refineAbstraction(PartialOrderCegarLoop.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-04-06 12:20:44,660 INFO L158 Benchmark]: Toolchain (without parser) took 12495.31ms. Allocated memory was 304.1MB in the beginning and 368.1MB in the end (delta: 64.0MB). Free memory was 275.1MB in the beginning and 251.8MB in the end (delta: 23.4MB). Peak memory consumption was 86.7MB. Max. memory is 8.0GB. [2024-04-06 12:20:44,660 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.52ms. Allocated memory is still 304.1MB. Free memory was 273.5MB in the beginning and 273.4MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 8.0GB. [2024-04-06 12:20:44,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 304.1MB. Free memory was 275.1MB in the beginning and 275.6MB in the end (delta: -434.9kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-04-06 12:20:44,661 INFO L158 Benchmark]: Boogie Preprocessor took 17.01ms. Allocated memory is still 304.1MB. Free memory was 275.1MB in the beginning and 274.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-04-06 12:20:44,661 INFO L158 Benchmark]: RCFGBuilder took 311.61ms. Allocated memory is still 304.1MB. Free memory was 274.0MB in the beginning and 262.1MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-04-06 12:20:44,661 INFO L158 Benchmark]: TraceAbstraction took 12116.55ms. Allocated memory was 304.1MB in the beginning and 368.1MB in the end (delta: 64.0MB). Free memory was 261.1MB in the beginning and 251.8MB in the end (delta: 9.3MB). Peak memory consumption was 74.1MB. Max. memory is 8.0GB. [2024-04-06 12:20:44,664 INFO L338 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 0.52ms. Allocated memory is still 304.1MB. Free memory was 273.5MB in the beginning and 273.4MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 304.1MB. Free memory was 275.1MB in the beginning and 275.6MB in the end (delta: -434.9kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.01ms. Allocated memory is still 304.1MB. Free memory was 275.1MB in the beginning and 274.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 311.61ms. Allocated memory is still 304.1MB. Free memory was 274.0MB in the beginning and 262.1MB in the end (delta: 11.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 12116.55ms. Allocated memory was 304.1MB in the beginning and 368.1MB in the end (delta: 64.0MB). Free memory was 261.1MB in the beginning and 251.8MB in the end (delta: 9.3MB). Peak memory consumption was 74.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Function c_aux_v_state22_58 is already defined. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Function c_aux_v_state22_58 is already defined.: de.uni_freiburg.informatik.ultimate.logic.NoopScript.declareFun(NoopScript.java:229) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-04-06 12:20:44,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-04-06 12:20:44,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...