/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-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 18:36:01,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 18:36:01,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 18:36:01,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 18:36:01,683 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-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random521.epf [2021-10-22 18:36:01,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 18:36:01,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 18:36:01,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 18:36:01,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 18:36:01,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 18:36:01,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 18:36:01,698 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 18:36:01,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 18:36:01,699 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 18:36:01,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 18:36:01,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 18:36:01,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 18:36:01,701 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 18:36:01,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 18:36:01,702 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 [2021-10-22 18:36:01,702 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 18:36:01,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 18:36:01,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 18:36:01,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 18:36:01,896 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 18:36:01,900 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 18:36:01,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl [2021-10-22 18:36:01,901 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-3.wvr.bpl' [2021-10-22 18:36:01,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 18:36:01,918 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 18:36:01,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 18:36:01,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 18:36:01,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 18:36:01,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 18:36:01,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 18:36:01,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 18:36:01,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 18:36:01,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 18:36:01,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 18:36:01,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 18:36:01,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 18:36:01,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/1) ... [2021-10-22 18:36:01,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 18:36:01,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:01,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-22 18:36:02,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-22 18:36:02,023 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 18:36:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 18:36:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 18:36:02,023 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 18:36:02,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 18:36:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 18:36:02,024 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 18:36:02,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 18:36:02,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 18:36:02,025 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 18:36:02,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 18:36:02,220 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-22 18:36:02,221 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-10-22 18:36:02,222 INFO L202 PluginConnector]: Adding new model unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 06:36:02 BoogieIcfgContainer [2021-10-22 18:36:02,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 18:36:02,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 18:36:02,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 18:36:02,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 18:36:02,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 06:36:01" (1/2) ... [2021-10-22 18:36:02,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ada3343 and model type unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 06:36:02, skipping insertion in model container [2021-10-22 18:36:02,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 06:36:02" (2/2) ... [2021-10-22 18:36:02,231 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.bpl [2021-10-22 18:36:02,234 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 18:36:02,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 18:36:02,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 18:36:02,234 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 18:36:02,291 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-22 18:36:02,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 18:36:02,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:02,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 18:36:02,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-22 18:36:02,339 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 18:36:02,343 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 18:36:02,343 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-22 18:36:02,386 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:02,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:02,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1947075123, now seen corresponding path program 1 times [2021-10-22 18:36:02,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:02,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654192061] [2021-10-22 18:36:02,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:02,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:02,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:02,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654192061] [2021-10-22 18:36:02,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654192061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 18:36:02,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 18:36:02,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 18:36:02,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253044627] [2021-10-22 18:36:02,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-22 18:36:02,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-22 18:36:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-22 18:36:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:02,532 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:02,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:02,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:02,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:02,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 18:36:02,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:02,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:02,562 INFO L82 PathProgramCache]: Analyzing trace with hash -460412499, now seen corresponding path program 1 times [2021-10-22 18:36:02,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:02,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138611718] [2021-10-22 18:36:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:02,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 18:36:02,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:02,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138611718] [2021-10-22 18:36:02,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138611718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:02,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405526580] [2021-10-22 18:36:02,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:02,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:02,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:02,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:02,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 18:36:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:02,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-22 18:36:02,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:02,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:02,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405526580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:02,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:02,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2021-10-22 18:36:02,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284320013] [2021-10-22 18:36:02,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-22 18:36:02,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:02,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-22 18:36:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-22 18:36:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:02,748 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:02,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:02,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:02,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:02,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:03,024 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 [2021-10-22 18:36:03,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:03,025 INFO L82 PathProgramCache]: Analyzing trace with hash 575133261, now seen corresponding path program 1 times [2021-10-22 18:36:03,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:03,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172441565] [2021-10-22 18:36:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:03,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 18:36:03,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:03,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172441565] [2021-10-22 18:36:03,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172441565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:03,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819622907] [2021-10-22 18:36:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:03,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:03,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:03,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:03,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 18:36:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:03,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-22 18:36:03,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:03,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819622907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:03,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:03,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2021-10-22 18:36:03,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781379337] [2021-10-22 18:36:03,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-22 18:36:03,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:03,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-22 18:36:03,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-22 18:36:03,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:03,226 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:03,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:03,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:03,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:03,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:03,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-22 18:36:03,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:03,529 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash 75118477, now seen corresponding path program 2 times [2021-10-22 18:36:03,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:03,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657528532] [2021-10-22 18:36:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:03,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:03,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:03,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657528532] [2021-10-22 18:36:03,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657528532] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:03,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613290946] [2021-10-22 18:36:03,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 18:36:03,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:03,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:03,734 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:03,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 18:36:03,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 18:36:03,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:03,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-22 18:36:03,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:04,486 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 18:36:04,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 76 treesize of output 267 [2021-10-22 18:36:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:09,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613290946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:09,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:09,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-10-22 18:36:09,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020857694] [2021-10-22 18:36:09,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-22 18:36:09,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:09,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-22 18:36:09,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-22 18:36:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:09,339 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:09,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:09,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:09,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:09,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:09,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:09,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:09,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:10,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:10,196 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:10,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:10,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1838639347, now seen corresponding path program 3 times [2021-10-22 18:36:10,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:10,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990906611] [2021-10-22 18:36:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:10,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:10,370 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 36 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:10,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:10,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990906611] [2021-10-22 18:36:10,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990906611] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:10,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543944386] [2021-10-22 18:36:10,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 18:36:10,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:10,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:10,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 18:36:10,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-22 18:36:10,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:10,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 18:36:10,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-22 18:36:10,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543944386] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:10,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:10,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 26 [2021-10-22 18:36:10,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671160995] [2021-10-22 18:36:10,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-22 18:36:10,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:10,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-22 18:36:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2021-10-22 18:36:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:10,603 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:10,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 26 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:10,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:11,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:11,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:11,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:11,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1362232947, now seen corresponding path program 4 times [2021-10-22 18:36:11,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:11,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900040517] [2021-10-22 18:36:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:11,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 36 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:11,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:11,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900040517] [2021-10-22 18:36:11,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900040517] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:11,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724482551] [2021-10-22 18:36:11,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 18:36:11,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:11,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:11,574 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:11,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 18:36:11,661 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 18:36:11,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:11,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-22 18:36:11,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:11,764 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 45 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:11,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724482551] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:11,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:11,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-22 18:36:11,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856504518] [2021-10-22 18:36:11,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-22 18:36:11,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:11,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-22 18:36:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2021-10-22 18:36:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:11,767 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:11,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:11,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:12,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:12,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:12,262 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:12,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:12,262 INFO L82 PathProgramCache]: Analyzing trace with hash 740761394, now seen corresponding path program 5 times [2021-10-22 18:36:12,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:12,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982252994] [2021-10-22 18:36:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:12,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 36 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:12,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:12,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982252994] [2021-10-22 18:36:12,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982252994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:12,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862741772] [2021-10-22 18:36:12,581 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 18:36:12,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:12,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:12,582 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:12,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 18:36:12,696 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-10-22 18:36:12,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:12,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-22 18:36:12,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 45 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:12,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862741772] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:12,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:12,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-10-22 18:36:12,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021442513] [2021-10-22 18:36:12,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-22 18:36:12,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:12,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-22 18:36:12,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-10-22 18:36:12,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:12,800 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:12,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 28 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:12,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:13,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-22 18:36:13,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:13,393 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:13,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1509076525, now seen corresponding path program 6 times [2021-10-22 18:36:13,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:13,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556520295] [2021-10-22 18:36:13,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:13,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 36 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:13,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:13,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556520295] [2021-10-22 18:36:13,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556520295] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:13,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070930180] [2021-10-22 18:36:13,742 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 18:36:13,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:13,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:13,743 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:13,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 18:36:13,855 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-10-22 18:36:13,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:13,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-22 18:36:13,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:13,992 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 45 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:13,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070930180] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:13,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:13,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 29 [2021-10-22 18:36:13,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050267941] [2021-10-22 18:36:13,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-22 18:36:13,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-22 18:36:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2021-10-22 18:36:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:13,994 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:13,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:13,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:14,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-22 18:36:14,560 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,SelfDestructingSolverStorable7 [2021-10-22 18:36:14,560 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:14,561 INFO L82 PathProgramCache]: Analyzing trace with hash -442958190, now seen corresponding path program 7 times [2021-10-22 18:36:14,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:14,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990589940] [2021-10-22 18:36:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:14,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 36 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:14,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:14,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990589940] [2021-10-22 18:36:14,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990589940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:14,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121490344] [2021-10-22 18:36:14,890 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 18:36:14,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:14,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:14,891 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) [2021-10-22 18:36:14,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 18:36:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:15,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-22 18:36:15,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 45 proven. 163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:15,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121490344] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:15,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:15,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 30 [2021-10-22 18:36:15,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328087305] [2021-10-22 18:36:15,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-22 18:36:15,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-22 18:36:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2021-10-22 18:36:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:15,125 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:15,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:15,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:15,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:15,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:15,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:15,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:15,694 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:15,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:15,695 INFO L82 PathProgramCache]: Analyzing trace with hash -826492211, now seen corresponding path program 8 times [2021-10-22 18:36:15,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:15,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596704306] [2021-10-22 18:36:15,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:15,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 36 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:16,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:16,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596704306] [2021-10-22 18:36:16,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596704306] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:16,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104501750] [2021-10-22 18:36:16,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 18:36:16,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:16,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:16,027 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) [2021-10-22 18:36:16,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 18:36:16,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 18:36:16,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:16,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-22 18:36:16,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 45 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:16,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104501750] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:16,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:16,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 31 [2021-10-22 18:36:16,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81574389] [2021-10-22 18:36:16,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-22 18:36:16,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-22 18:36:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=714, Unknown=0, NotChecked=0, Total=992 [2021-10-22 18:36:16,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:16,293 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:16,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.3125) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:16,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:16,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:16,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-22 18:36:16,869 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,SelfDestructingSolverStorable9 [2021-10-22 18:36:16,869 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:16,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:16,870 INFO L82 PathProgramCache]: Analyzing trace with hash 168855026, now seen corresponding path program 9 times [2021-10-22 18:36:16,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:16,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825543419] [2021-10-22 18:36:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:16,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 36 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:17,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:17,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825543419] [2021-10-22 18:36:17,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825543419] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:17,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351364058] [2021-10-22 18:36:17,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 18:36:17,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:17,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:17,288 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) [2021-10-22 18:36:17,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-22 18:36:17,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-22 18:36:17,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:17,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-22 18:36:17,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 45 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:17,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351364058] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:17,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:17,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 32 [2021-10-22 18:36:17,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471408735] [2021-10-22 18:36:17,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-22 18:36:17,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:17,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-22 18:36:17,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=757, Unknown=0, NotChecked=0, Total=1056 [2021-10-22 18:36:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:17,585 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:17,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.303030303030303) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:17,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:18,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:18,187 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,SelfDestructingSolverStorable10 [2021-10-22 18:36:18,187 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:18,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:18,188 INFO L82 PathProgramCache]: Analyzing trace with hash 959848301, now seen corresponding path program 10 times [2021-10-22 18:36:18,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:18,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776784827] [2021-10-22 18:36:18,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:18,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:18,564 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 36 proven. 229 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:18,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:18,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776784827] [2021-10-22 18:36:18,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776784827] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:18,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140621115] [2021-10-22 18:36:18,565 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 18:36:18,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:18,566 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) [2021-10-22 18:36:18,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-22 18:36:18,727 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 18:36:18,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:18,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-22 18:36:18,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 45 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:18,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140621115] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:18,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:18,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 33 [2021-10-22 18:36:18,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947644960] [2021-10-22 18:36:18,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-22 18:36:18,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:18,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-22 18:36:18,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-10-22 18:36:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:18,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:18,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 33 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) [2021-10-22 18:36:18,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:18,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:19,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:19,463 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,SelfDestructingSolverStorable11 [2021-10-22 18:36:19,463 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:19,464 INFO L82 PathProgramCache]: Analyzing trace with hash -289163950, now seen corresponding path program 11 times [2021-10-22 18:36:19,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:19,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425591825] [2021-10-22 18:36:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:19,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 36 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:19,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:19,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425591825] [2021-10-22 18:36:19,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425591825] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:19,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620396340] [2021-10-22 18:36:19,869 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 18:36:19,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:19,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:19,870 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:19,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-22 18:36:20,053 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-10-22 18:36:20,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:20,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-22 18:36:20,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 45 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:20,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620396340] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:20,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:20,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 34 [2021-10-22 18:36:20,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304930577] [2021-10-22 18:36:20,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-22 18:36:20,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-22 18:36:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=846, Unknown=0, NotChecked=0, Total=1190 [2021-10-22 18:36:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:20,194 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:20,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:20,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:20,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:20,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-22 18:36:20,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-22 18:36:20,817 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:20,818 INFO L82 PathProgramCache]: Analyzing trace with hash -353838067, now seen corresponding path program 12 times [2021-10-22 18:36:20,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:20,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366002997] [2021-10-22 18:36:20,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:20,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 36 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:21,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:21,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366002997] [2021-10-22 18:36:21,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366002997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:21,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128608694] [2021-10-22 18:36:21,280 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 18:36:21,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:21,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:21,287 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:21,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-22 18:36:21,516 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-10-22 18:36:21,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:21,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-22 18:36:21,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 45 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:21,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128608694] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:21,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:21,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 35 [2021-10-22 18:36:21,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016947816] [2021-10-22 18:36:21,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-22 18:36:21,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-22 18:36:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=892, Unknown=0, NotChecked=0, Total=1260 [2021-10-22 18:36:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:21,672 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:21,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 35 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:21,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:21,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:22,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:22,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:22,321 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:22,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:22,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1936231602, now seen corresponding path program 13 times [2021-10-22 18:36:22,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:22,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508562434] [2021-10-22 18:36:22,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:22,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 36 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:22,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:22,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508562434] [2021-10-22 18:36:22,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508562434] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:22,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138966255] [2021-10-22 18:36:22,789 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 18:36:22,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:22,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:22,790 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:22,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-22 18:36:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:22,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-22 18:36:23,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:23,141 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 45 proven. 286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:23,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138966255] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:23,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:23,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 36 [2021-10-22 18:36:23,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746842411] [2021-10-22 18:36:23,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-22 18:36:23,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:23,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-22 18:36:23,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=939, Unknown=0, NotChecked=0, Total=1332 [2021-10-22 18:36:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:23,143 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:23,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 36 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:23,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:23,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:23,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:23,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-22 18:36:23,747 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:23,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:23,748 INFO L82 PathProgramCache]: Analyzing trace with hash -86052691, now seen corresponding path program 14 times [2021-10-22 18:36:23,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:23,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293350712] [2021-10-22 18:36:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:23,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 36 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:24,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:24,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293350712] [2021-10-22 18:36:24,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293350712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:24,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512184267] [2021-10-22 18:36:24,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 18:36:24,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:24,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:24,226 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:24,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-22 18:36:24,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 18:36:24,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:24,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-22 18:36:24,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 45 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:24,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512184267] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:24,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:24,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 37 [2021-10-22 18:36:24,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418160325] [2021-10-22 18:36:24,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-22 18:36:24,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:24,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-22 18:36:24,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=987, Unknown=0, NotChecked=0, Total=1406 [2021-10-22 18:36:24,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:24,615 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:24,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:24,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:24,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:25,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-22 18:36:25,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-22 18:36:25,234 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1647643666, now seen corresponding path program 15 times [2021-10-22 18:36:25,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:25,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265645039] [2021-10-22 18:36:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:25,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 36 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:25,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:25,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265645039] [2021-10-22 18:36:25,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265645039] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:25,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859278473] [2021-10-22 18:36:25,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 18:36:25,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:25,717 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:25,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-22 18:36:25,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-10-22 18:36:25,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:25,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-22 18:36:25,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 45 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:26,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859278473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:26,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:26,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 38 [2021-10-22 18:36:26,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076308744] [2021-10-22 18:36:26,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-22 18:36:26,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:26,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-22 18:36:26,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=1036, Unknown=0, NotChecked=0, Total=1482 [2021-10-22 18:36:26,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:26,139 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:26,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:26,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:26,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-22 18:36:26,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-22 18:36:26,790 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:26,790 INFO L82 PathProgramCache]: Analyzing trace with hash -442344115, now seen corresponding path program 16 times [2021-10-22 18:36:26,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:26,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517887095] [2021-10-22 18:36:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:26,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 36 proven. 370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:27,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:27,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517887095] [2021-10-22 18:36:27,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517887095] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:27,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789129557] [2021-10-22 18:36:27,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 18:36:27,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:27,346 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:27,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-22 18:36:27,625 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 18:36:27,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:27,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-22 18:36:27,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 45 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:27,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789129557] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:27,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:27,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 39 [2021-10-22 18:36:27,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647193146] [2021-10-22 18:36:27,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-22 18:36:27,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:27,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-22 18:36:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=1086, Unknown=0, NotChecked=0, Total=1560 [2021-10-22 18:36:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:27,786 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:27,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:27,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:28,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:28,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-22 18:36:28,406 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:28,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:28,406 INFO L82 PathProgramCache]: Analyzing trace with hash -807455886, now seen corresponding path program 17 times [2021-10-22 18:36:28,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:28,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633743599] [2021-10-22 18:36:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:28,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 36 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:28,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:28,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633743599] [2021-10-22 18:36:28,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633743599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:28,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976122041] [2021-10-22 18:36:28,946 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 18:36:28,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:28,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:28,947 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:28,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-22 18:36:29,224 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2021-10-22 18:36:29,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:29,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-22 18:36:29,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 45 proven. 388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:29,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976122041] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:29,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:29,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 40 [2021-10-22 18:36:29,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135494141] [2021-10-22 18:36:29,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-22 18:36:29,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:29,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-22 18:36:29,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=503, Invalid=1137, Unknown=0, NotChecked=0, Total=1640 [2021-10-22 18:36:29,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:29,372 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:29,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 40 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:29,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:29,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:29,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-22 18:36:29,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-10-22 18:36:30,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:30,060 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:30,060 INFO L82 PathProgramCache]: Analyzing trace with hash 758981101, now seen corresponding path program 18 times [2021-10-22 18:36:30,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:30,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458209248] [2021-10-22 18:36:30,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:30,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 36 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:30,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:30,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458209248] [2021-10-22 18:36:30,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458209248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:30,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135545245] [2021-10-22 18:36:30,664 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 18:36:30,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:30,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:30,665 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:30,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-22 18:36:30,971 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2021-10-22 18:36:30,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:30,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-22 18:36:30,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 45 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:31,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135545245] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:31,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:31,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 41 [2021-10-22 18:36:31,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466703717] [2021-10-22 18:36:31,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-22 18:36:31,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-22 18:36:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=1189, Unknown=0, NotChecked=0, Total=1722 [2021-10-22 18:36:31,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:31,123 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:31,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 41 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-10-22 18:36:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-22 18:36:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-22 18:36:31,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-22 18:36:31,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:31,808 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:31,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2073887442, now seen corresponding path program 19 times [2021-10-22 18:36:31,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:31,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560584245] [2021-10-22 18:36:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:31,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 36 proven. 454 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:32,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:32,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560584245] [2021-10-22 18:36:32,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560584245] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:32,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325575680] [2021-10-22 18:36:32,397 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 18:36:32,397 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:32,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:32,398 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:32,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-22 18:36:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:32,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-22 18:36:32,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 45 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:32,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325575680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:32,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 18:36:32,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 42 [2021-10-22 18:36:32,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084237181] [2021-10-22 18:36:32,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-22 18:36:32,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 18:36:32,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-22 18:36:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=1242, Unknown=0, NotChecked=0, Total=1806 [2021-10-22 18:36:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:32,895 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 18:36:32,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 42 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:32,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:32,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:32,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:32,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-10-22 18:36:32,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-22 18:36:32,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 18:36:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 18:36:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-22 18:36:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-22 18:36:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-22 18:36:33,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-22 18:36:33,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:33,560 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 18:36:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 18:36:33,561 INFO L82 PathProgramCache]: Analyzing trace with hash -113688947, now seen corresponding path program 20 times [2021-10-22 18:36:33,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 18:36:33,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195166054] [2021-10-22 18:36:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 18:36:33,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 18:36:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 18:36:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 18:36:34,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 18:36:34,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195166054] [2021-10-22 18:36:34,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195166054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 18:36:34,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207723659] [2021-10-22 18:36:34,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 18:36:34,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:36:34,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 18:36:34,702 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 18:36:34,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-22 18:36:35,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 18:36:35,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 18:36:35,042 WARN L261 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 131 conjunts are in the unsatisfiable core [2021-10-22 18:36:35,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 18:36:49,221 WARN L207 SmtUtils]: Spent 10.35 s on a formula simplification that was a NOOP. DAG size: 2049 [2021-10-22 18:36:49,222 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 18:36:49,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 32 select indices, 32 select index equivalence classes, 0 disjoint index pairs (out of 496 index pairs), introduced 63 new quantified variables, introduced 496 case distinctions, treesize of input 268 treesize of output 4083 Received shutdown request... [2021-10-22 18:50:04,455 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 18:50:04,456 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 18:50:04,461 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-22 18:50:04,463 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 18:50:04,479 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 18:50:04,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-22 18:50:04,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 18:50:04,671 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. [2021-10-22 18:50:04,673 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 18:50:04,673 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 18:50:04,688 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 18:50:04,688 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 18:50:04,689 INFO L202 PluginConnector]: Adding new model unroll-cond-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 06:50:04 BasicIcfg [2021-10-22 18:50:04,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 18:50:04,690 INFO L168 Benchmark]: Toolchain (without parser) took 842771.93 ms. Allocated memory was 202.4 MB in the beginning and 1.1 GB in the end (delta: 926.9 MB). Free memory was 167.4 MB in the beginning and 546.1 MB in the end (delta: -378.7 MB). Peak memory consumption was 711.3 MB. Max. memory is 8.0 GB. [2021-10-22 18:50:04,690 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 202.4 MB. Free memory was 168.6 MB in the beginning and 168.5 MB in the end (delta: 132.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 18:50:04,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.35 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 165.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 18:50:04,690 INFO L168 Benchmark]: Boogie Preprocessor took 14.26 ms. Allocated memory is still 202.4 MB. Free memory was 165.8 MB in the beginning and 164.9 MB in the end (delta: 894.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 18:50:04,691 INFO L168 Benchmark]: RCFGBuilder took 262.42 ms. Allocated memory is still 202.4 MB. Free memory was 164.8 MB in the beginning and 147.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-10-22 18:50:04,691 INFO L168 Benchmark]: TraceAbstraction took 842466.18 ms. Allocated memory was 202.4 MB in the beginning and 1.1 GB in the end (delta: 926.9 MB). Free memory was 147.1 MB in the beginning and 546.1 MB in the end (delta: -399.0 MB). Peak memory consumption was 689.3 MB. Max. memory is 8.0 GB. [2021-10-22 18:50:04,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 202.4 MB. Free memory was 168.6 MB in the beginning and 168.5 MB in the end (delta: 132.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.35 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 165.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.26 ms. Allocated memory is still 202.4 MB. Free memory was 165.8 MB in the beginning and 164.9 MB in the end (delta: 894.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 262.42 ms. Allocated memory is still 202.4 MB. Free memory was 164.8 MB in the beginning and 147.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 842466.18 ms. Allocated memory was 202.4 MB in the beginning and 1.1 GB in the end (delta: 926.9 MB). Free memory was 147.1 MB in the beginning and 546.1 MB in the end (delta: -399.0 MB). Peak memory consumption was 689.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1834, positive: 963, positive conditional: 920, positive unconditional: 43, negative: 871, negative conditional: 871, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 963, positive: 963, positive conditional: 0, positive unconditional: 963, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 43, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 43, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 963, positive: 920, positive conditional: 0, positive unconditional: 920, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 43, unknown conditional: 0, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 871 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 10, Number of persistent set computation: 10, Number of trivial persistent sets: 7, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1834, positive: 963, positive conditional: 920, positive unconditional: 43, negative: 871, negative conditional: 871, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 963, positive: 963, positive conditional: 0, positive unconditional: 963, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 43, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 43, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 963, positive: 920, positive conditional: 0, positive unconditional: 920, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 43, unknown conditional: 0, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 871 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 842369.4ms, OverallIterations: 22, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 7842.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 749, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 124.2ms SsaConstructionTime, 596.7ms SatisfiabilityAnalysisTime, 15411.0ms InterpolantComputationTime, 1478 NumberOfCodeBlocks, 1474 NumberOfCodeBlocksAsserted, 136 NumberOfCheckSat, 1437 ConstructedInterpolants, 0 QuantifiedInterpolants, 6991 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3270 ConjunctsInSsa, 592 ConjunctsInUnsatCore, 41 InterpolantComputations, 1 PerfectInterpolantSequences, 1367/10058 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown