/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 07:13:39,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 07:13:39,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 07:13:39,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 07:13:39,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 07:13:39,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 07:13:39,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 07:13:39,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 07:13:39,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 07:13:39,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 07:13:39,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 07:13:39,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 07:13:39,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 07:13:39,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 07:13:39,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 07:13:39,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 07:13:39,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 07:13:39,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 07:13:39,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 07:13:39,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 07:13:39,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 07:13:39,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 07:13:39,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 07:13:39,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 07:13:39,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 07:13:39,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 07:13:39,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 07:13:39,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 07:13:39,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-16 07:13:39,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 07:13:39,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 07:13:39,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 07:13:39,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 07:13:39,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 07:13:39,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 07:13:39,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 07:13:39,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 07:13:39,588 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 07:13:39,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 07:13:39,588 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 07:13:39,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 07:13:39,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 07:13:39,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 07:13:39,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 07:13:39,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 07:13:39,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 07:13:39,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:13:39,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 07:13:39,591 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 07:13:39,592 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 07:13:39,593 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 07:13:39,593 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 07:13:39,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 07:13:39,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 07:13:39,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 07:13:39,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 07:13:39,816 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 07:13:39,819 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 07:13:39,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2022-03-16 07:13:39,821 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2022-03-16 07:13:39,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 07:13:39,840 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 07:13:39,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 07:13:39,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 07:13:39,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 07:13:39,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,863 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 07:13:39,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 07:13:39,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 07:13:39,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 07:13:39,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 07:13:39,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 07:13:39,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 07:13:39,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 07:13:39,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 07:13:39,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/1) ... [2022-03-16 07:13:39,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:13:39,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:13:39,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 07:13:39,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 07:13:39,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 07:13:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 07:13:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 07:13:39,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 07:13:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 07:13:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 07:13:39,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 07:13:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 07:13:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 07:13:39,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 07:13:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 07:13:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 07:13:39,962 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 07:13:40,014 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 07:13:40,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 07:13:40,124 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 07:13:40,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 07:13:40,137 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 07:13:40,139 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:13:40 BoogieIcfgContainer [2022-03-16 07:13:40,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 07:13:40,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 07:13:40,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 07:13:40,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 07:13:40,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:13:39" (1/2) ... [2022-03-16 07:13:40,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f645ca7 and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:13:40, skipping insertion in model container [2022-03-16 07:13:40,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:13:40" (2/2) ... [2022-03-16 07:13:40,150 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2022-03-16 07:13:40,154 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 07:13:40,154 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 07:13:40,154 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 07:13:40,154 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 07:13:40,215 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 07:13:40,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 07:13:40,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:13:40,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 07:13:40,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 07:13:40,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 07:13:40,344 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-16 07:13:40,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 07:13:40,580 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-16 07:13:40,583 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:13:40,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:13:40,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-16 07:13:40,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:13:40,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445714549] [2022-03-16 07:13:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:13:40,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:13:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:13:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 07:13:40,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:13:40,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445714549] [2022-03-16 07:13:40,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445714549] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:13:40,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557930175] [2022-03-16 07:13:40,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:13:40,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:13:40,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:13:40,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:13:40,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 07:13:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:13:40,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 07:13:40,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:13:41,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:13:41,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:13:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:13:41,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557930175] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:13:41,492 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:13:41,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-16 07:13:41,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513678524] [2022-03-16 07:13:41,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:13:41,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 07:13:41,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:13:41,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 07:13:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-16 07:13:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:13:41,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:13:41,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:13:41,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:13:42,181 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-16 07:13:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:13:42,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 07:13:42,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 07:13:42,403 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:13:42,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:13:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-16 07:13:42,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:13:42,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740284183] [2022-03-16 07:13:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:13:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:13:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:13:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:42,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:13:42,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740284183] [2022-03-16 07:13:42,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740284183] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:13:42,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363055198] [2022-03-16 07:13:42,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 07:13:42,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:13:42,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:13:42,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:13:42,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 07:13:42,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 07:13:42,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:13:42,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-16 07:13:42,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:13:42,770 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:42,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:13:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:42,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363055198] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:13:42,954 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:13:42,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-16 07:13:42,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034739993] [2022-03-16 07:13:42,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:13:42,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-16 07:13:42,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:13:42,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-16 07:13:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-16 07:13:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:13:42,957 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:13:42,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:13:42,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:13:42,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:13:43,398 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-16 07:13:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:13:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:13:43,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 07:13:43,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:13:43,613 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:13:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:13:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-16 07:13:43,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:13:43,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852447302] [2022-03-16 07:13:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:13:43,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:13:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:13:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:44,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:13:44,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852447302] [2022-03-16 07:13:44,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852447302] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:13:44,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466368406] [2022-03-16 07:13:44,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 07:13:44,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:13:44,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:13:44,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:13:44,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 07:13:44,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-16 07:13:44,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:13:44,233 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 07:13:44,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:13:44,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:44,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:45,012 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:13:45,013 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-03-16 07:13:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:45,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:13:45,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:45,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:45,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:46,021 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-16 07:13:46,022 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-03-16 07:13:46,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:46,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:46,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:46,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:46,220 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-03-16 07:13:46,372 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:46,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466368406] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:13:46,373 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:13:46,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-16 07:13:46,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683439824] [2022-03-16 07:13:46,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:13:46,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-16 07:13:46,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:13:46,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-16 07:13:46,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-16 07:13:46,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:13:46,375 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:13:46,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:13:46,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:13:46,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:13:46,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:13:55,433 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-16 07:13:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:13:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:13:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:13:55,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 07:13:55,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:13:55,635 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:13:55,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:13:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-16 07:13:55,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:13:55,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900831685] [2022-03-16 07:13:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:13:55,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:13:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:13:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:56,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:13:56,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900831685] [2022-03-16 07:13:56,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900831685] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:13:56,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992883923] [2022-03-16 07:13:56,198 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 07:13:56,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:13:56,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:13:56,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:13:56,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 07:13:56,236 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 07:13:56,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:13:56,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-16 07:13:56,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:13:57,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:57,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:57,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:57,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:13:57,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:57,078 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2022-03-16 07:13:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:13:57,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:13:57,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:57,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:57,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:13:58,169 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-16 07:13:58,169 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 50 treesize of output 313 [2022-03-16 07:14:11,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:11,991 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:14:11,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-03-16 07:14:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:14:12,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992883923] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:14:12,394 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:14:12,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-16 07:14:12,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203162746] [2022-03-16 07:14:12,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:14:12,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-16 07:14:12,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:14:12,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-16 07:14:12,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-16 07:14:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:14:12,397 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:14:12,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:14:12,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:14:12,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:14:12,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:14:12,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:14:21,782 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-16 07:14:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:14:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:14:21,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:14:21,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:14:21,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 07:14:21,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:14:21,985 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:14:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:14:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-16 07:14:21,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:14:21,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170696252] [2022-03-16 07:14:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:14:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:14:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:14:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:14:22,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:14:22,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170696252] [2022-03-16 07:14:22,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170696252] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:14:22,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924982601] [2022-03-16 07:14:22,557 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 07:14:22,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:14:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:14:22,560 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:14:22,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 07:14:22,599 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-16 07:14:22,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:14:22,600 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-16 07:14:22,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:14:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:14:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:14:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:14:23,895 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-16 07:14:23,895 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-03-16 07:14:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:14:23,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:14:25,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,356 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:14:25,777 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:14:25,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-03-16 07:20:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:15,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924982601] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:20:15,705 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:20:15,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-16 07:20:15,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102139107] [2022-03-16 07:20:15,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:20:15,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-16 07:20:15,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:20:15,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-16 07:20:15,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-16 07:20:15,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:15,708 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:20:15,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:20:15,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:15,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:15,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:15,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:15,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:23,679 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-16 07:20:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:23,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:20:23,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 07:20:23,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:23,881 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:20:23,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:20:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-16 07:20:23,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:20:23,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795157628] [2022-03-16 07:20:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:20:23,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:20:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:20:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:24,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:20:24,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795157628] [2022-03-16 07:20:24,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795157628] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:20:24,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928192489] [2022-03-16 07:20:24,038 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 07:20:24,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:24,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:20:24,040 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:20:24,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 07:20:24,077 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-16 07:20:24,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:20:24,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-16 07:20:24,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:20:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:24,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:20:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:24,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928192489] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:20:24,808 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:20:24,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-16 07:20:24,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166651905] [2022-03-16 07:20:24,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:20:24,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-16 07:20:24,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:20:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-16 07:20:24,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-16 07:20:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:24,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:20:24,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:20:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:20:24,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:26,206 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-16 07:20:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:20:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 07:20:26,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 07:20:26,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:26,415 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:20:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:20:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-16 07:20:26,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:20:26,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724163046] [2022-03-16 07:20:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:20:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:20:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:20:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:26,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:20:26,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724163046] [2022-03-16 07:20:26,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724163046] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:20:26,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533241293] [2022-03-16 07:20:26,628 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 07:20:26,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:26,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:20:26,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:20:26,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 07:20:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:20:26,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-16 07:20:26,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:20:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 07:20:27,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:20:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 07:20:27,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533241293] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:20:27,344 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:20:27,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-16 07:20:27,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512113082] [2022-03-16 07:20:27,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:20:27,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-16 07:20:27,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:20:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-16 07:20:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-16 07:20:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:27,346 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:20:27,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 07:20:27,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:31,409 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-16 07:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:20:31,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:20:31,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 07:20:31,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 07:20:31,610 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:20:31,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:20:31,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-16 07:20:31,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:20:31,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151912723] [2022-03-16 07:20:31,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:20:31,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:20:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:20:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:31,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:20:31,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151912723] [2022-03-16 07:20:31,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151912723] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:20:31,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478299584] [2022-03-16 07:20:31,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 07:20:31,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:31,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:20:31,858 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:20:31,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 07:20:31,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 07:20:31,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:20:31,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 07:20:31,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:20:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:20:32,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:20:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:20:32,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478299584] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:20:32,627 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:20:32,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-16 07:20:32,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878139085] [2022-03-16 07:20:32,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:20:32,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-16 07:20:32,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:20:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-16 07:20:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-16 07:20:32,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:32,630 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:20:32,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:20:32,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:32,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:32,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:32,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:32,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:20:32,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:20:32,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:20:32,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:33,725 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-16 07:20:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:33,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:20:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:20:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:20:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:20:33,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 07:20:33,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:33,943 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:20:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:20:33,944 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-16 07:20:33,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:20:33,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763980275] [2022-03-16 07:20:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:20:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:20:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:20:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:34,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:20:34,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763980275] [2022-03-16 07:20:34,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763980275] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:20:34,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757411482] [2022-03-16 07:20:34,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 07:20:34,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:34,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:20:34,194 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:20:34,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 07:20:34,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-16 07:20:34,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:20:34,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 07:20:34,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:20:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:34,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:20:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:35,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757411482] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:20:35,309 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:20:35,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-16 07:20:35,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28790738] [2022-03-16 07:20:35,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:20:35,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-16 07:20:35,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:20:35,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-16 07:20:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-16 07:20:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:35,311 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:20:35,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:20:35,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:20:36,048 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-16 07:20:36,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:20:36,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:20:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 07:20:36,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 07:20:36,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 07:20:36,250 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:20:36,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:20:36,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-16 07:20:36,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:20:36,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084345399] [2022-03-16 07:20:36,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:20:36,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:20:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:20:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:37,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:20:37,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084345399] [2022-03-16 07:20:37,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084345399] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:20:37,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334819770] [2022-03-16 07:20:37,448 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 07:20:37,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:20:37,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:20:37,449 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 07:20:37,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 07:20:37,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 07:20:37,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:20:37,486 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-16 07:20:37,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:20:39,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:39,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:39,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:20:39,694 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-03-16 07:20:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:20:39,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:20:41,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:41,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:20:46,708 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-16 07:20:46,709 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-03-16 07:27:31,668 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-16 07:27:31,670 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 07:27:31,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-03-16 07:27:31,703 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 07:27:31,703 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 07:27:31,703 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 07:27:31,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 07:27:31,871 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 10ms.. [2022-03-16 07:27:31,872 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 07:27:31,872 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 07:27:31,872 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 07:27:31,876 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-16 07:27:31,878 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 07:27:31,878 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 07:27:31,880 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 07:27:31 BasicIcfg [2022-03-16 07:27:31,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 07:27:31,881 INFO L158 Benchmark]: Toolchain (without parser) took 832041.06ms. Allocated memory was 188.7MB in the beginning and 675.3MB in the end (delta: 486.5MB). Free memory was 149.0MB in the beginning and 551.5MB in the end (delta: -402.5MB). Peak memory consumption was 463.0MB. Max. memory is 8.0GB. [2022-03-16 07:27:31,881 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:27:31,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.74ms. Allocated memory is still 188.7MB. Free memory was 148.9MB in the beginning and 147.4MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-16 07:27:31,881 INFO L158 Benchmark]: Boogie Preprocessor took 17.72ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 146.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 07:27:31,882 INFO L158 Benchmark]: RCFGBuilder took 252.84ms. Allocated memory is still 188.7MB. Free memory was 146.4MB in the beginning and 136.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 07:27:31,882 INFO L158 Benchmark]: TraceAbstraction took 831740.10ms. Allocated memory was 188.7MB in the beginning and 675.3MB in the end (delta: 486.5MB). Free memory was 136.2MB in the beginning and 551.5MB in the end (delta: -415.2MB). Peak memory consumption was 448.4MB. Max. memory is 8.0GB. [2022-03-16 07:27:31,883 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14ms. Allocated memory is still 188.7MB. Free memory is still 150.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.74ms. Allocated memory is still 188.7MB. Free memory was 148.9MB in the beginning and 147.4MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.72ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 146.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.84ms. Allocated memory is still 188.7MB. Free memory was 146.4MB in the beginning and 136.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 831740.10ms. Allocated memory was 188.7MB in the beginning and 675.3MB in the end (delta: 486.5MB). Free memory was 136.2MB in the beginning and 551.5MB in the end (delta: -415.2MB). Peak memory consumption was 448.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 10ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 10ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 10ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 10ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 831.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 35.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 378.2s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown