/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-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 23:40:42,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 23:40:42,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 23:40:42,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 23:40:42,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 23:40:42,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 23:40:42,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 23:40:42,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 23:40:42,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 23:40:42,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 23:40:42,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 23:40:42,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 23:40:42,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 23:40:42,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 23:40:42,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 23:40:42,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 23:40:42,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 23:40:42,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 23:40:42,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 23:40:42,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 23:40:42,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 23:40:42,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 23:40:42,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 23:40:42,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 23:40:42,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 23:40:42,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 23:40:42,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 23:40:42,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 23:40:42,646 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-wrwc.epf [2022-02-19 23:40:42,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 23:40:42,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 23:40:42,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 23:40:42,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 23:40:42,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 23:40:42,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 23:40:42,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 23:40:42,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 23:40:42,679 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 23:40:42,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 23:40:42,679 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 23:40:42,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 23:40:42,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 23:40:42,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 23:40:42,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 23:40:42,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 23:40:42,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 23:40:42,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:40:42,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 23:40:42,682 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 23:40:42,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 23:40:42,683 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 23:40:42,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 23:40:42,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 23:40:42,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 23:40:42,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 23:40:42,916 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 23:40:42,919 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 23:40:42,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-02-19 23:40:42,921 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-02-19 23:40:42,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 23:40:42,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 23:40:42,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 23:40:42,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 23:40:42,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 23:40:42,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,973 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 23:40:42,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 23:40:42,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 23:40:42,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 23:40:42,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 23:40:42,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:42,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 23:40:42,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 23:40:42,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 23:40:42,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 23:40:42,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/1) ... [2022-02-19 23:40:43,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 23:40:43,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:40:43,020 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) [2022-02-19 23:40:43,027 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 [2022-02-19 23:40:43,048 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 23:40:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 23:40:43,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 23:40:43,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 23:40:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 23:40:43,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 23:40:43,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 23:40:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 23:40:43,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 23:40:43,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 23:40:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 23:40:43,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 23:40:43,050 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 23:40:43,085 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 23:40:43,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 23:40:43,171 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 23:40:43,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 23:40:43,185 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 23:40:43,187 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:40:43 BoogieIcfgContainer [2022-02-19 23:40:43,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 23:40:43,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 23:40:43,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 23:40:43,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 23:40:43,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:40:42" (1/2) ... [2022-02-19 23:40:43,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f308f6 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:40:43, skipping insertion in model container [2022-02-19 23:40:43,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:40:43" (2/2) ... [2022-02-19 23:40:43,194 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-02-19 23:40:43,198 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 23:40:43,198 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 23:40:43,198 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 23:40:43,198 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 23:40:43,244 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-19 23:40:43,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 23:40:43,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:40:43,290 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) [2022-02-19 23:40:43,296 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 [2022-02-19 23:40:43,320 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 23:40:43,326 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=true, mMcrOverapproximateWrwc=false [2022-02-19 23:40:43,326 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-19 23:40:43,669 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-02-19 23:40:43,671 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:40:43,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:40:43,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-02-19 23:40:43,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:40:43,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396293284] [2022-02-19 23:40:43,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:40:43,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:40:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:40:43,992 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-19 23:40:43,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:40:43,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396293284] [2022-02-19 23:40:43,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396293284] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:40:43,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394553311] [2022-02-19 23:40:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:40:44,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:40:44,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:40:44,063 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) [2022-02-19 23:40:44,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 23:40:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:40:44,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 23:40:44,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:40:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 23:40:44,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:40:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 23:40:44,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394553311] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:40:44,550 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:40:44,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-02-19 23:40:44,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487031220] [2022-02-19 23:40:44,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:40:44,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-19 23:40:44,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:40:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-19 23:40:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-02-19 23:40:44,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:40:44,591 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:40:44,593 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) [2022-02-19 23:40:44,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:40:45,227 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-02-19 23:40:45,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:40:45,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 23:40:45,443 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 [2022-02-19 23:40:45,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:40:45,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:40:45,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-02-19 23:40:45,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:40:45,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768272] [2022-02-19 23:40:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:40:45,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:40:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:40:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:45,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:40:45,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768272] [2022-02-19 23:40:45,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768272] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:40:45,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424139126] [2022-02-19 23:40:45,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 23:40:45,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:40:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:40:45,560 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) [2022-02-19 23:40:45,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 23:40:45,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 23:40:45,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:40:45,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-19 23:40:45,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:40:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:45,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:40:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:46,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424139126] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:40:46,015 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:40:46,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-19 23:40:46,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406315292] [2022-02-19 23:40:46,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:40:46,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-19 23:40:46,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:40:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-19 23:40:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-19 23:40:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:40:46,018 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:40:46,018 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) [2022-02-19 23:40:46,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:40:46,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:40:46,450 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-02-19 23:40:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:40:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:40:46,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 23:40:46,651 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 [2022-02-19 23:40:46,652 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:40:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:40:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-02-19 23:40:46,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:40:46,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720802583] [2022-02-19 23:40:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:40:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:40:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:40:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:47,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:40:47,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720802583] [2022-02-19 23:40:47,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720802583] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:40:47,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679470591] [2022-02-19 23:40:47,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 23:40:47,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:40:47,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:40:47,287 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) [2022-02-19 23:40:47,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 23:40:47,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-19 23:40:47,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:40:47,333 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-19 23:40:47,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:40:48,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:48,135 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 23:40:48,136 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 [2022-02-19 23:40:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:48,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:40:49,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:49,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:49,213 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-02-19 23:40:49,213 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 [2022-02-19 23:40:49,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,394 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:49,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,397 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:49,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:49,400 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 [2022-02-19 23:40:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:49,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679470591] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:40:49,550 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:40:49,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-02-19 23:40:49,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953110033] [2022-02-19 23:40:49,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:40:49,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-19 23:40:49,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:40:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-19 23:40:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-02-19 23:40:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:40:49,552 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:40:49,552 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) [2022-02-19 23:40:49,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:40:49,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:40:49,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:40:58,322 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-02-19 23:40:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:40:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:40:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:40:58,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 23:40:58,524 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 [2022-02-19 23:40:58,524 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:40:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:40:58,525 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-02-19 23:40:58,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:40:58,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390245694] [2022-02-19 23:40:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:40:58,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:40:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:40:59,096 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:40:59,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:40:59,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390245694] [2022-02-19 23:40:59,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390245694] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:40:59,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304279135] [2022-02-19 23:40:59,097 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 23:40:59,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:40:59,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:40:59,099 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) [2022-02-19 23:40:59,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 23:40:59,145 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 23:40:59,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:40:59,146 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-02-19 23:40:59,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:40:59,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:59,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:59,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:59,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:40:59,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:40:59,993 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 [2022-02-19 23:41:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:41:00,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:41:00,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:00,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:00,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:01,044 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-02-19 23:41:01,044 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 [2022-02-19 23:41:18,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:18,643 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 23:41:18,643 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 [2022-02-19 23:41:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:41:19,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304279135] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:41:19,134 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:41:19,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-02-19 23:41:19,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168002901] [2022-02-19 23:41:19,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:41:19,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-19 23:41:19,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:41:19,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-19 23:41:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-02-19 23:41:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:41:19,137 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:41:19,137 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) [2022-02-19 23:41:19,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:41:19,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:41:19,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:41:19,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:41:28,781 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-02-19 23:41:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:41:28,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:41:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:41:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:41:28,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 23:41:28,984 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 [2022-02-19 23:41:28,985 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:41:28,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:41:28,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-02-19 23:41:28,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:41:28,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221251521] [2022-02-19 23:41:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:41:28,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:41:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:41:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:41:29,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:41:29,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221251521] [2022-02-19 23:41:29,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221251521] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:41:29,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927700342] [2022-02-19 23:41:29,624 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 23:41:29,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:41:29,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:41:29,627 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) [2022-02-19 23:41:29,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 23:41:29,661 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-19 23:41:29,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:41:29,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-19 23:41:29,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:41:30,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:41:30,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:41:30,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:41:30,915 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-02-19 23:41:30,915 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 [2022-02-19 23:41:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:41:30,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:41:32,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,349 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:41:32,771 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 23:41:32,771 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 [2022-02-19 23:47:48,702 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:47:48,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927700342] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:47:48,703 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:47:48,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-02-19 23:47:48,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204460836] [2022-02-19 23:47:48,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:47:48,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-19 23:47:48,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:47:48,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-19 23:47:48,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-02-19 23:47:48,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:47:48,705 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:47:48,706 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) [2022-02-19 23:47:48,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:47:48,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:47:48,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:47:48,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:47:48,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:47:56,610 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-02-19 23:47:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:47:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:47:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:47:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:47:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-19 23:47:56,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 23:47:56,811 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 [2022-02-19 23:47:56,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:47:56,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:47:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-02-19 23:47:56,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:47:56,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801622151] [2022-02-19 23:47:56,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:47:56,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:47:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:47:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:47:56,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:47:56,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801622151] [2022-02-19 23:47:56,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801622151] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:47:56,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583171020] [2022-02-19 23:47:56,974 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 23:47:56,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:47:56,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:47:56,975 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) [2022-02-19 23:47:56,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 23:47:57,010 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-02-19 23:47:57,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:47:57,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-19 23:47:57,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:47:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:47:57,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:47:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:47:57,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583171020] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:47:57,714 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:47:57,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-02-19 23:47:57,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228927916] [2022-02-19 23:47:57,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:47:57,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-19 23:47:57,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:47:57,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-19 23:47:57,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-02-19 23:47:57,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:47:57,717 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:47:57,717 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) [2022-02-19 23:47:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:47:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:47:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:47:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:47:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-19 23:47:57,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:47:59,075 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-02-19 23:47:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:47:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:47:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:47:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:47:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-19 23:47:59,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-19 23:47:59,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 23:47:59,276 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 [2022-02-19 23:47:59,277 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:47:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:47:59,277 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-02-19 23:47:59,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:47:59,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664107058] [2022-02-19 23:47:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:47:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:47:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:47:59,482 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:47:59,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:47:59,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664107058] [2022-02-19 23:47:59,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664107058] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:47:59,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246841805] [2022-02-19 23:47:59,483 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 23:47:59,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:47:59,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:47:59,486 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) [2022-02-19 23:47:59,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 23:47:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:47:59,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-19 23:47:59,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:47:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 23:47:59,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:48:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 23:48:00,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246841805] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:48:00,169 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:48:00,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-02-19 23:48:00,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012174575] [2022-02-19 23:48:00,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:48:00,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-19 23:48:00,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:48:00,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-19 23:48:00,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-02-19 23:48:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:48:00,171 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:48:00,172 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) [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-19 23:48:00,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:48:04,349 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-02-19 23:48:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:48:04,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:48:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:48:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:48:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-19 23:48:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-19 23:48:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 23:48:04,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-19 23:48:04,574 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 [2022-02-19 23:48:04,575 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:48:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:48:04,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-02-19 23:48:04,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:48:04,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836325453] [2022-02-19 23:48:04,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:48:04,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:48:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:48:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:48:04,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:48:04,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836325453] [2022-02-19 23:48:04,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836325453] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:48:04,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232193245] [2022-02-19 23:48:04,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 23:48:04,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:48:04,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:48:04,832 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) [2022-02-19 23:48:04,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 23:48:04,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 23:48:04,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:48:04,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-19 23:48:04,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:48:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 23:48:05,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:48:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 23:48:05,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232193245] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:48:05,590 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:48:05,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-02-19 23:48:05,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438191702] [2022-02-19 23:48:05,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:48:05,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-19 23:48:05,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:48:05,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-19 23:48:05,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-02-19 23:48:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:48:05,593 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:48:05,593 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) [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 23:48:05,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:48:06,744 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-02-19 23:48:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:48:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:48:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:48:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:48:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-19 23:48:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-19 23:48:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 23:48:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-19 23:48:06,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-19 23:48:06,948 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 [2022-02-19 23:48:06,948 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:48:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:48:06,948 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-02-19 23:48:06,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:48:06,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745306994] [2022-02-19 23:48:06,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:48:06,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:48:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:48:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:48:07,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:48:07,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745306994] [2022-02-19 23:48:07,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745306994] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:48:07,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427399777] [2022-02-19 23:48:07,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 23:48:07,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:48:07,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:48:07,167 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) [2022-02-19 23:48:07,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 23:48:07,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-19 23:48:07,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:48:07,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-19 23:48:07,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:48:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:48:07,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:48:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:48:08,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427399777] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:48:08,272 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:48:08,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-02-19 23:48:08,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532669875] [2022-02-19 23:48:08,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:48:08,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-19 23:48:08,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:48:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-19 23:48:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-02-19 23:48:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:48:08,274 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:48:08,274 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) [2022-02-19 23:48:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:48:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:48:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:48:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:48:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-19 23:48:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-02-19 23:48:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 23:48:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-19 23:48:08,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:48:09,049 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-19 23:48:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-19 23:48:09,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 23:48:09,250 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 [2022-02-19 23:48:09,251 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 23:48:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 23:48:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-02-19 23:48:09,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 23:48:09,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778011801] [2022-02-19 23:48:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 23:48:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 23:48:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:48:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:48:10,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:48:10,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778011801] [2022-02-19 23:48:10,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778011801] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:48:10,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345823168] [2022-02-19 23:48:10,504 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 23:48:10,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:48:10,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:48:10,505 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) [2022-02-19 23:48:10,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-19 23:48:10,548 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 23:48:10,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:48:10,549 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-02-19 23:48:10,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:48:12,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:12,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:12,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:12,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 23:48:12,766 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 [2022-02-19 23:48:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:48:12,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:48:14,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,822 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:14,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 23:48:19,791 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-02-19 23:48:19,792 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... [2022-02-19 23:54:35,510 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 [2022-02-19 23:54:35,510 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 [2022-02-19 23:54:35,524 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-19 23:54:35,526 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-19 23:54:35,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-19 23:54:35,557 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 [2022-02-19 23:54:35,727 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 [2022-02-19 23:54:35,727 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 24 for 30ms.. [2022-02-19 23:54:35,728 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-19 23:54:35,728 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-19 23:54:35,728 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-19 23:54:35,733 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-02-19 23:54:35,734 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 23:54:35,735 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 23:54:35,736 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:54:35 BasicIcfg [2022-02-19 23:54:35,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 23:54:35,737 INFO L158 Benchmark]: Toolchain (without parser) took 832791.08ms. Allocated memory was 182.5MB in the beginning and 678.4MB in the end (delta: 496.0MB). Free memory was 139.2MB in the beginning and 231.5MB in the end (delta: -92.3MB). Peak memory consumption was 468.7MB. Max. memory is 8.0GB. [2022-02-19 23:54:35,737 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 182.5MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 23:54:35,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.22ms. Allocated memory is still 182.5MB. Free memory was 139.2MB in the beginning and 137.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:54:35,737 INFO L158 Benchmark]: Boogie Preprocessor took 18.23ms. Allocated memory is still 182.5MB. Free memory was 137.6MB in the beginning and 136.7MB in the end (delta: 980.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:54:35,738 INFO L158 Benchmark]: RCFGBuilder took 192.32ms. Allocated memory is still 182.5MB. Free memory was 136.7MB in the beginning and 127.3MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-19 23:54:35,738 INFO L158 Benchmark]: TraceAbstraction took 832547.73ms. Allocated memory was 182.5MB in the beginning and 678.4MB in the end (delta: 496.0MB). Free memory was 126.8MB in the beginning and 231.5MB in the end (delta: -104.6MB). Peak memory consumption was 456.2MB. Max. memory is 8.0GB. [2022-02-19 23:54:35,739 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 0.15ms. Allocated memory is still 182.5MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.22ms. Allocated memory is still 182.5MB. Free memory was 139.2MB in the beginning and 137.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.23ms. Allocated memory is still 182.5MB. Free memory was 137.6MB in the beginning and 136.7MB in the end (delta: 980.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 192.32ms. Allocated memory is still 182.5MB. Free memory was 136.7MB in the beginning and 127.3MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 832547.73ms. Allocated memory was 182.5MB in the beginning and 678.4MB in the end (delta: 496.0MB). Free memory was 126.8MB in the beginning and 231.5MB in the end (delta: -104.6MB). Peak memory consumption was 456.2MB. 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 24 for 30ms.. - 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 24 for 30ms.. - 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 24 for 30ms.. - 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 24 for 30ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 832.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 35.2s, 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, 408.0s 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