/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 22:57:03,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 22:57:03,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 22:57:03,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 22:57:03,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 22:57:03,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 22:57:03,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 22:57:03,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2022-02-18 22:57:03,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 22:57:03,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 22:57:03,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 22:57:03,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 22:57:03,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 22:57:03,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 22:57:03,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 22:57:03,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 22:57:03,605 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 22:57:03,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 22:57:03,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 22:57:03,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 22:57:03,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 22:57:03,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 22:57:03,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 22:57:03,608 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 22:57:03,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-18 22:57:03,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 22:57:03,608 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-18 22:57:03,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 22:57:03,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 22:57:03,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 22:57:03,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 22:57:03,806 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-18 22:57:03,808 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-18 22:57:03,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-array-sum.wvr.bpl [2022-02-18 22:57:03,809 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/simple-array-sum.wvr.bpl' [2022-02-18 22:57:03,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 22:57:03,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-18 22:57:03,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 22:57:03,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 22:57:03,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 22:57:03,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,843 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-18 22:57:03,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 22:57:03,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 22:57:03,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 22:57:03,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 22:57:03,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 22:57:03,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 22:57:03,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 22:57:03,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 22:57:03,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/1) ... [2022-02-18 22:57:03,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 22:57:03,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:03,885 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) [2022-02-18 22:57:03,911 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 [2022-02-18 22:57:03,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-18 22:57:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 22:57:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 22:57:03,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-18 22:57:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 22:57:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 22:57:03,934 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-18 22:57:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 22:57:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 22:57:03,935 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-18 22:57:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 22:57:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 22:57:03,935 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 22:57:03,969 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 22:57:03,970 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 22:57:04,048 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 22:57:04,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 22:57:04,058 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 22:57:04,059 INFO L202 PluginConnector]: Adding new model simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:57:04 BoogieIcfgContainer [2022-02-18 22:57:04,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 22:57:04,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 22:57:04,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 22:57:04,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 22:57:04,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:57:03" (1/2) ... [2022-02-18 22:57:04,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@899b312 and model type simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 10:57:04, skipping insertion in model container [2022-02-18 22:57:04,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:57:04" (2/2) ... [2022-02-18 22:57:04,065 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-array-sum.wvr.bpl [2022-02-18 22:57:04,068 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 22:57:04,068 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 22:57:04,068 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 22:57:04,068 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 22:57:04,104 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-18 22:57:04,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-18 22:57:04,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:04,167 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) [2022-02-18 22:57:04,183 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 [2022-02-18 22:57:04,190 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 22:57:04,195 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=true [2022-02-18 22:57:04,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-18 22:57:04,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash 191955369, now seen corresponding path program 1 times [2022-02-18 22:57:04,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:04,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007665605] [2022-02-18 22:57:04,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:04,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 22:57:04,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:04,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007665605] [2022-02-18 22:57:04,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007665605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 22:57:04,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 22:57:04,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 22:57:04,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212738944] [2022-02-18 22:57:04,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 22:57:04,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 22:57:04,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:04,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 22:57:04,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 22:57:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:04,511 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:04,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-02-18 22:57:04,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:04,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 22:57:04,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:04,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:04,624 INFO L85 PathProgramCache]: Analyzing trace with hash -483787253, now seen corresponding path program 1 times [2022-02-18 22:57:04,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:04,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858125174] [2022-02-18 22:57:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 22:57:04,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:04,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858125174] [2022-02-18 22:57:04,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858125174] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:04,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739243628] [2022-02-18 22:57:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:04,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:04,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:04,697 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) [2022-02-18 22:57:04,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 22:57:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:04,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-18 22:57:04,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 22:57:04,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 22:57:04,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739243628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 22:57:04,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 22:57:04,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-02-18 22:57:04,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930841801] [2022-02-18 22:57:04,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 22:57:04,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 22:57:04,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 22:57:04,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-18 22:57:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:04,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:04,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 22:57:04,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:04,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:04,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:05,094 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,SelfDestructingSolverStorable1 [2022-02-18 22:57:05,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:05,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:05,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2072638038, now seen corresponding path program 1 times [2022-02-18 22:57:05,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:05,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598631328] [2022-02-18 22:57:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-18 22:57:05,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:05,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598631328] [2022-02-18 22:57:05,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598631328] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 22:57:05,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 22:57:05,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 22:57:05,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150381243] [2022-02-18 22:57:05,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 22:57:05,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 22:57:05,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 22:57:05,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 22:57:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:05,139 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:05,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2022-02-18 22:57:05,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:05,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 22:57:05,197 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:05,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:05,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2014904941, now seen corresponding path program 2 times [2022-02-18 22:57:05,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:05,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796429929] [2022-02-18 22:57:05,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:05,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 22:57:05,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:05,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796429929] [2022-02-18 22:57:05,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796429929] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:05,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917349227] [2022-02-18 22:57:05,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 22:57:05,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:05,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:05,249 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) [2022-02-18 22:57:05,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 22:57:05,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 22:57:05,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:05,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-18 22:57:05,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 22:57:05,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 22:57:05,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917349227] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:05,435 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:05,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-02-18 22:57:05,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357180805] [2022-02-18 22:57:05,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:05,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-18 22:57:05,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:05,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-18 22:57:05,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-18 22:57:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:05,436 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:05,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 22:57:05,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:05,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:05,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:05,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:05,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1629860887, now seen corresponding path program 3 times [2022-02-18 22:57:05,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:05,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647342448] [2022-02-18 22:57:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:05,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 22:57:06,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:06,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647342448] [2022-02-18 22:57:06,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647342448] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:06,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950516388] [2022-02-18 22:57:06,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 22:57:06,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:06,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:06,256 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) [2022-02-18 22:57:06,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 22:57:06,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-18 22:57:06,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:06,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-18 22:57:06,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:06,580 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-18 22:57:06,666 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-02-18 22:57:06,679 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 22:57:06,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 41 [2022-02-18 22:57:06,952 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2022-02-18 22:57:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 22:57:07,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:07,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:07,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:07,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 458 treesize of output 426 [2022-02-18 22:57:07,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:07,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:07,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:07,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:07,549 INFO L353 Elim1Store]: treesize reduction 10, result has 81.8 percent of original size [2022-02-18 22:57:07,550 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 84 [2022-02-18 22:57:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 22:57:07,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950516388] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:07,941 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:07,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-02-18 22:57:07,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488858211] [2022-02-18 22:57:07,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:07,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 22:57:07,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:07,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 22:57:07,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=693, Unknown=0, NotChecked=0, Total=812 [2022-02-18 22:57:07,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:07,943 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:07,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 28 states have internal predecessors, (74), 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) [2022-02-18 22:57:07,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:07,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:07,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:07,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:07,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:08,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:08,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:08,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:08,949 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:08,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:08,949 INFO L85 PathProgramCache]: Analyzing trace with hash -979755577, now seen corresponding path program 4 times [2022-02-18 22:57:08,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:08,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133093264] [2022-02-18 22:57:08,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:08,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:08,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-18 22:57:08,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:08,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133093264] [2022-02-18 22:57:08,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133093264] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:08,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144314669] [2022-02-18 22:57:08,998 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 22:57:08,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:08,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:09,024 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) [2022-02-18 22:57:09,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 22:57:09,052 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 22:57:09,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:09,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 22:57:09,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-18 22:57:09,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-18 22:57:09,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144314669] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:09,180 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:09,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-02-18 22:57:09,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797050442] [2022-02-18 22:57:09,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:09,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 22:57:09,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:09,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 22:57:09,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-18 22:57:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:09,181 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:09,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 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) [2022-02-18 22:57:09,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:09,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:09,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:09,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:09,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:09,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:09,559 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:09,560 INFO L85 PathProgramCache]: Analyzing trace with hash -662213289, now seen corresponding path program 5 times [2022-02-18 22:57:09,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:09,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925454651] [2022-02-18 22:57:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:09,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-18 22:57:09,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:09,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925454651] [2022-02-18 22:57:09,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925454651] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:09,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414357209] [2022-02-18 22:57:09,601 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 22:57:09,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:09,616 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) [2022-02-18 22:57:09,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 22:57:09,656 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-18 22:57:09,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:09,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-18 22:57:09,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-18 22:57:09,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-18 22:57:09,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414357209] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:09,809 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:09,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-02-18 22:57:09,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530881694] [2022-02-18 22:57:09,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:09,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 22:57:09,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:09,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 22:57:09,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-18 22:57:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:09,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:09,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 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) [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:09,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:09,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:10,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:10,188 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1044427763, now seen corresponding path program 2 times [2022-02-18 22:57:10,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:10,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112636833] [2022-02-18 22:57:10,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:10,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 23 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-02-18 22:57:10,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:10,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112636833] [2022-02-18 22:57:10,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112636833] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:10,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326538199] [2022-02-18 22:57:10,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 22:57:10,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:10,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:10,347 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) [2022-02-18 22:57:10,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 22:57:10,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 22:57:10,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:10,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 22:57:10,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-02-18 22:57:10,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-02-18 22:57:10,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326538199] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:10,638 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:10,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 24 [2022-02-18 22:57:10,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478809241] [2022-02-18 22:57:10,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:10,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-18 22:57:10,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-18 22:57:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2022-02-18 22:57:10,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:10,639 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:10,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.96) internal successors, (74), 24 states have internal predecessors, (74), 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) [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:10,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:10,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:11,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:11,049 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:11,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2107516501, now seen corresponding path program 3 times [2022-02-18 22:57:11,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:11,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370071050] [2022-02-18 22:57:11,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:11,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 102 proven. 30 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-18 22:57:11,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:11,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370071050] [2022-02-18 22:57:11,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370071050] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:11,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140707775] [2022-02-18 22:57:11,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 22:57:11,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:11,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:11,132 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) [2022-02-18 22:57:11,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 22:57:11,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-18 22:57:11,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:11,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 22:57:11,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 89 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-18 22:57:11,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:11,393 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 89 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-18 22:57:11,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140707775] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:11,394 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:11,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 20 [2022-02-18 22:57:11,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692385735] [2022-02-18 22:57:11,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:11,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-18 22:57:11,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:11,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-18 22:57:11,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-02-18 22:57:11,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:11,395 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:11,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.55) internal successors, (91), 20 states have internal predecessors, (91), 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) [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:11,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:11,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:12,106 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,SelfDestructingSolverStorable8 [2022-02-18 22:57:12,106 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash 755836024, now seen corresponding path program 4 times [2022-02-18 22:57:12,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:12,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856551784] [2022-02-18 22:57:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:12,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:12,336 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 130 proven. 78 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-18 22:57:12,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:12,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856551784] [2022-02-18 22:57:12,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856551784] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:12,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936252135] [2022-02-18 22:57:12,337 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 22:57:12,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:12,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:12,338 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) [2022-02-18 22:57:12,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 22:57:12,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 22:57:12,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:12,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-18 22:57:12,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 133 proven. 25 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-18 22:57:12,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:12,757 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 133 proven. 25 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-18 22:57:12,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936252135] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:12,757 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:12,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 13] total 31 [2022-02-18 22:57:12,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086149265] [2022-02-18 22:57:12,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:12,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-18 22:57:12,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:12,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-18 22:57:12,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2022-02-18 22:57:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:12,758 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:12,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.03125) internal successors, (97), 31 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) [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:12,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-18 22:57:13,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-18 22:57:13,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-18 22:57:13,236 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:13,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1934656602, now seen corresponding path program 5 times [2022-02-18 22:57:13,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:13,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439364002] [2022-02-18 22:57:13,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 117 proven. 89 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-18 22:57:13,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:13,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439364002] [2022-02-18 22:57:13,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439364002] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:13,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473125302] [2022-02-18 22:57:13,350 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 22:57:13,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:13,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:13,364 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) [2022-02-18 22:57:13,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 22:57:13,395 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-02-18 22:57:13,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:13,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 22:57:13,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 130 proven. 34 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-18 22:57:13,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 130 proven. 34 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-18 22:57:13,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473125302] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:13,669 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:13,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 8] total 26 [2022-02-18 22:57:13,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791747491] [2022-02-18 22:57:13,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-18 22:57:13,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-18 22:57:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-02-18 22:57:13,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:13,670 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:13,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.153846153846154) internal successors, (108), 26 states have internal predecessors, (108), 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) [2022-02-18 22:57:13,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:13,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:13,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:13,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:13,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-18 22:57:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-18 22:57:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-18 22:57:14,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:14,639 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,SelfDestructingSolverStorable10 [2022-02-18 22:57:14,639 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:14,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:14,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1932876074, now seen corresponding path program 6 times [2022-02-18 22:57:14,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:14,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012403591] [2022-02-18 22:57:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:14,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 62 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-18 22:57:14,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:14,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012403591] [2022-02-18 22:57:14,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012403591] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:14,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933072537] [2022-02-18 22:57:14,760 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 22:57:14,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:14,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:14,761 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) [2022-02-18 22:57:14,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 22:57:14,803 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-02-18 22:57:14,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:14,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-18 22:57:14,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-18 22:57:15,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-18 22:57:15,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933072537] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 22:57:15,117 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 22:57:15,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2022-02-18 22:57:15,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689825684] [2022-02-18 22:57:15,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 22:57:15,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-18 22:57:15,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 22:57:15,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-18 22:57:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2022-02-18 22:57:15,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:15,121 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 22:57:15,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.2) internal successors, (96), 29 states have internal predecessors, (96), 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) [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-18 22:57:15,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-18 22:57:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-18 22:57:15,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:15,913 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,SelfDestructingSolverStorable11 [2022-02-18 22:57:15,913 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 22:57:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 22:57:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash 875611559, now seen corresponding path program 6 times [2022-02-18 22:57:15,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 22:57:15,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405551504] [2022-02-18 22:57:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 22:57:15,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 22:57:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 22:57:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 20 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 22:57:17,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 22:57:17,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405551504] [2022-02-18 22:57:17,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405551504] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 22:57:17,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802224946] [2022-02-18 22:57:17,101 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 22:57:17,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 22:57:17,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 22:57:17,109 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 22:57:17,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 22:57:17,166 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-02-18 22:57:17,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 22:57:17,168 WARN L261 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 110 conjunts are in the unsatisfiable core [2022-02-18 22:57:17,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 22:57:18,040 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-02-18 22:57:18,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:18,157 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-02-18 22:57:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:18,384 INFO L353 Elim1Store]: treesize reduction 54, result has 19.4 percent of original size [2022-02-18 22:57:18,384 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 42 [2022-02-18 22:57:18,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:18,571 INFO L353 Elim1Store]: treesize reduction 106, result has 15.9 percent of original size [2022-02-18 22:57:18,571 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 58 [2022-02-18 22:57:18,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:18,752 INFO L353 Elim1Store]: treesize reduction 170, result has 13.7 percent of original size [2022-02-18 22:57:18,752 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 63 treesize of output 74 [2022-02-18 22:57:18,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:18,991 INFO L353 Elim1Store]: treesize reduction 246, result has 12.1 percent of original size [2022-02-18 22:57:18,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 76 treesize of output 90 [2022-02-18 22:57:19,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:19,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,662 INFO L353 Elim1Store]: treesize reduction 134, result has 66.1 percent of original size [2022-02-18 22:57:19,663 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 31 disjoint index pairs (out of 78 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 159 treesize of output 349 [2022-02-18 22:57:19,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:19,735 INFO L353 Elim1Store]: treesize reduction 134, result has 8.8 percent of original size [2022-02-18 22:57:19,735 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 379 treesize of output 330 [2022-02-18 22:57:28,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:28,719 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 22:57:28,719 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 51 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 188 [2022-02-18 22:57:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 20 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 22:57:29,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 22:57:41,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:41,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:41,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:41,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:41,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 22:57:41,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 22:57:41,810 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 6357 treesize of output 6165 [2022-02-18 22:57:41,845 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-02-18 22:57:41,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:42,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-18 22:57:42,063 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-18 22:57:42,066 INFO L158 Benchmark]: Toolchain (without parser) took 38238.72ms. Allocated memory was 188.7MB in the beginning and 414.2MB in the end (delta: 225.4MB). Free memory was 145.7MB in the beginning and 364.4MB in the end (delta: -218.7MB). Peak memory consumption was 235.9MB. Max. memory is 8.0GB. [2022-02-18 22:57:42,066 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 22:57:42,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.36ms. Allocated memory is still 188.7MB. Free memory was 145.7MB in the beginning and 144.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 22:57:42,067 INFO L158 Benchmark]: Boogie Preprocessor took 11.23ms. Allocated memory is still 188.7MB. Free memory was 144.1MB in the beginning and 143.2MB in the end (delta: 908.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 22:57:42,067 INFO L158 Benchmark]: RCFGBuilder took 202.85ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 133.8MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-18 22:57:42,067 INFO L158 Benchmark]: TraceAbstraction took 38004.86ms. Allocated memory was 188.7MB in the beginning and 414.2MB in the end (delta: 225.4MB). Free memory was 133.3MB in the beginning and 364.4MB in the end (delta: -231.1MB). Peak memory consumption was 224.4MB. Max. memory is 8.0GB. [2022-02-18 22:57:42,068 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 0.09ms. Allocated memory is still 188.7MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 16.36ms. Allocated memory is still 188.7MB. Free memory was 145.7MB in the beginning and 144.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.23ms. Allocated memory is still 188.7MB. Free memory was 144.1MB in the beginning and 143.2MB in the end (delta: 908.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 202.85ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 133.8MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 38004.86ms. Allocated memory was 188.7MB in the beginning and 414.2MB in the end (delta: 225.4MB). Free memory was 133.3MB in the beginning and 364.4MB in the end (delta: -231.1MB). Peak memory consumption was 224.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-18 22:57:42,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-18 22:57:42,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...