/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-24 22:44:59,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 22:44:59,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 22:44:59,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-24 22:44:59,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 22:44:59,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 22:44:59,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 22:44:59,843 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.epf [2021-10-24 22:44:59,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 22:44:59,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 22:44:59,867 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-24 22:44:59,867 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-24 22:44:59,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 22:44:59,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 22:44:59,868 INFO L138 SettingsManager]: * Use SBE=true [2021-10-24 22:44:59,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 22:44:59,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 22:44:59,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 22:44:59,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 22:44:59,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 22:44:59,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 22:44:59,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 22:44:59,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 22:44:59,871 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-24 22:44:59,872 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-24 22:44:59,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 22:44:59,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-24 22:45:00,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 22:45:00,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 22:45:00,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 22:45:00,048 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-24 22:45:00,061 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-24 22:45:00,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl [2021-10-24 22:45:00,062 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl' [2021-10-24 22:45:00,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 22:45:00,087 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-24 22:45:00,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 22:45:00,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 22:45:00,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 22:45:00,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 22:45:00,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 22:45:00,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 22:45:00,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 22:45:00,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 22:45:00,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 22:45:00,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 22:45:00,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 22:45:00,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/1) ... [2021-10-24 22:45:00,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 22:45:00,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:00,183 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) [2021-10-24 22:45:00,191 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 [2021-10-24 22:45:00,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-24 22:45:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-24 22:45:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-24 22:45:00,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-24 22:45:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-24 22:45:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-24 22:45:00,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-24 22:45:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 22:45:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 22:45:00,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-24 22:45:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-24 22:45:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-24 22:45:00,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-24 22:45:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-24 22:45:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-24 22:45:00,218 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 22:45:00,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 22:45:00,358 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-24 22:45:00,359 INFO L202 PluginConnector]: Adding new model min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:00 BoogieIcfgContainer [2021-10-24 22:45:00,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 22:45:00,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 22:45:00,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 22:45:00,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 22:45:00,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.10 10:45:00" (1/2) ... [2021-10-24 22:45:00,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4446a1 and model type min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:45:00, skipping insertion in model container [2021-10-24 22:45:00,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:00" (2/2) ... [2021-10-24 22:45:00,364 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc.wvr.bpl [2021-10-24 22:45:00,367 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 22:45:00,367 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 22:45:00,367 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 22:45:00,367 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 22:45:00,397 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-24 22:45:00,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-24 22:45:00,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:00,429 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) [2021-10-24 22:45:00,430 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 [2021-10-24 22:45:00,485 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-24 22:45:00,489 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 [2021-10-24 22:45:00,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-24 22:45:00,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:00,688 INFO L82 PathProgramCache]: Analyzing trace with hash 220507589, now seen corresponding path program 1 times [2021-10-24 22:45:00,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:00,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058375353] [2021-10-24 22:45:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:00,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:01,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:45:01,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:01,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058375353] [2021-10-24 22:45:01,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058375353] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:01,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259518376] [2021-10-24 22:45:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:01,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:01,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:01,061 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) [2021-10-24 22:45:01,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-24 22:45:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:01,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-24 22:45:01,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:01,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2021-10-24 22:45:01,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-24 22:45:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:45:01,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259518376] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:01,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:01,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-24 22:45:01,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415594480] [2021-10-24 22:45:01,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 22:45:01,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 22:45:01,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-10-24 22:45:01,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:01,600 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:01,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 13 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) [2021-10-24 22:45:01,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:01,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:01,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:01,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-24 22:45:01,971 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:01,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:01,972 INFO L82 PathProgramCache]: Analyzing trace with hash -458629721, now seen corresponding path program 2 times [2021-10-24 22:45:01,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:01,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90485204] [2021-10-24 22:45:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:01,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:45:02,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:02,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90485204] [2021-10-24 22:45:02,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90485204] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:02,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716605295] [2021-10-24 22:45:02,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 22:45:02,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:02,052 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) [2021-10-24 22:45:02,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-24 22:45:02,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 22:45:02,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:02,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 22:45:02,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 22:45:02,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716605295] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:02,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:02,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-24 22:45:02,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662761313] [2021-10-24 22:45:02,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 22:45:02,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 22:45:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-24 22:45:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:02,264 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:02,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 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) [2021-10-24 22:45:02,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:02,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:02,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:02,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:02,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:02,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:02,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1052994393, now seen corresponding path program 3 times [2021-10-24 22:45:02,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:02,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129643663] [2021-10-24 22:45:02,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:02,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-24 22:45:02,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:02,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129643663] [2021-10-24 22:45:02,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129643663] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:02,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367490939] [2021-10-24 22:45:02,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:45:02,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:02,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:02,667 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) [2021-10-24 22:45:02,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-24 22:45:02,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-24 22:45:02,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:02,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 22:45:02,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-24 22:45:02,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367490939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:02,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:02,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-24 22:45:02,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237167937] [2021-10-24 22:45:02,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 22:45:02,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 22:45:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-24 22:45:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:02,881 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:02,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 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) [2021-10-24 22:45:02,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:02,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:02,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:02,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:03,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:03,160 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:03,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2059058009, now seen corresponding path program 4 times [2021-10-24 22:45:03,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:03,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387903110] [2021-10-24 22:45:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:03,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:03,220 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-24 22:45:03,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:03,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387903110] [2021-10-24 22:45:03,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387903110] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:03,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576466238] [2021-10-24 22:45:03,221 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 22:45:03,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:03,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:03,231 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) [2021-10-24 22:45:03,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-24 22:45:03,333 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 22:45:03,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:03,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 22:45:03,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:03,455 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-24 22:45:03,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576466238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:03,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:03,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-24 22:45:03,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663327698] [2021-10-24 22:45:03,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 22:45:03,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:03,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 22:45:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-24 22:45:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:03,457 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:03,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 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) [2021-10-24 22:45:03,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:03,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:03,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:03,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:03,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:03,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:03,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:03,735 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:03,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2046181815, now seen corresponding path program 5 times [2021-10-24 22:45:03,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:03,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596209205] [2021-10-24 22:45:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:03,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-24 22:45:03,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:03,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596209205] [2021-10-24 22:45:03,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596209205] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:03,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485224464] [2021-10-24 22:45:03,804 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-24 22:45:03,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:03,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:03,805 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) [2021-10-24 22:45:03,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-24 22:45:03,936 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-24 22:45:03,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:03,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 22:45:03,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-24 22:45:04,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485224464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:04,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:04,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2021-10-24 22:45:04,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356520179] [2021-10-24 22:45:04,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-24 22:45:04,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-24 22:45:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-24 22:45:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:04,073 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:04,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 10 states have internal predecessors, (65), 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) [2021-10-24 22:45:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:04,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:04,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:04,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:04,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:04,414 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:04,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1145301457, now seen corresponding path program 6 times [2021-10-24 22:45:04,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:04,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597735559] [2021-10-24 22:45:04,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:04,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-24 22:45:04,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:04,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597735559] [2021-10-24 22:45:04,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597735559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:04,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570662068] [2021-10-24 22:45:04,474 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-24 22:45:04,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:04,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:04,475 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) [2021-10-24 22:45:04,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-24 22:45:04,617 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-24 22:45:04,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:04,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-24 22:45:04,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:05,799 INFO L354 Elim1Store]: treesize reduction 32, result has 47.5 percent of original size [2021-10-24 22:45:05,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 102 [2021-10-24 22:45:06,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2021-10-24 22:45:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-24 22:45:06,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570662068] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:06,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:06,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 23 [2021-10-24 22:45:06,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699315258] [2021-10-24 22:45:06,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-24 22:45:06,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:06,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-24 22:45:06,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2021-10-24 22:45:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:06,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:06,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.652173913043478) internal successors, (84), 23 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 22:45:06,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:06,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:06,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:06,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:06,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:06,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-24 22:45:08,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:08,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:08,388 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:08,388 INFO L82 PathProgramCache]: Analyzing trace with hash -302426909, now seen corresponding path program 7 times [2021-10-24 22:45:08,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:08,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856396644] [2021-10-24 22:45:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:08,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 43 proven. 16 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-24 22:45:08,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:08,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856396644] [2021-10-24 22:45:08,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856396644] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:08,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946228329] [2021-10-24 22:45:08,529 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-24 22:45:08,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:08,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:08,544 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) [2021-10-24 22:45:08,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-24 22:45:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:08,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-24 22:45:08,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:08,977 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-24 22:45:08,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946228329] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:08,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:08,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-10-24 22:45:08,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461923733] [2021-10-24 22:45:08,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-24 22:45:08,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:08,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-24 22:45:08,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-10-24 22:45:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:08,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:08,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.5) internal successors, (77), 21 states have internal predecessors, (77), 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) [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-24 22:45:08,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-24 22:45:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:10,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:10,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-24 22:45:10,397 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:10,398 INFO L82 PathProgramCache]: Analyzing trace with hash -996455103, now seen corresponding path program 8 times [2021-10-24 22:45:10,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:10,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357112840] [2021-10-24 22:45:10,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:10,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 38 proven. 45 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-24 22:45:10,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:10,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357112840] [2021-10-24 22:45:10,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357112840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:10,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683403127] [2021-10-24 22:45:10,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 22:45:10,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:10,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:10,485 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) [2021-10-24 22:45:10,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-24 22:45:10,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 22:45:10,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:10,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-24 22:45:10,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 47 proven. 25 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-24 22:45:10,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683403127] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:10,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:10,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 16 [2021-10-24 22:45:10,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884179992] [2021-10-24 22:45:10,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-24 22:45:10,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-24 22:45:10,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2021-10-24 22:45:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:10,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:10,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.470588235294118) internal successors, (76), 16 states have internal predecessors, (76), 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) [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:10,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-24 22:45:11,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:45:11,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:11,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:11,508 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:11,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:11,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1411761003, now seen corresponding path program 9 times [2021-10-24 22:45:11,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:11,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232372978] [2021-10-24 22:45:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:11,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 67 proven. 36 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-24 22:45:11,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:11,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232372978] [2021-10-24 22:45:11,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232372978] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:11,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441437440] [2021-10-24 22:45:11,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:45:11,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:11,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:11,632 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) [2021-10-24 22:45:11,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-24 22:45:11,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-24 22:45:11,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:11,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-24 22:45:11,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:13,528 INFO L354 Elim1Store]: treesize reduction 38, result has 43.3 percent of original size [2021-10-24 22:45:13,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 102 treesize of output 80 [2021-10-24 22:45:14,129 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 22 proven. 50 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-24 22:45:14,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441437440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:14,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:14,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2021-10-24 22:45:14,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476729474] [2021-10-24 22:45:14,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-24 22:45:14,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-24 22:45:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-10-24 22:45:14,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:14,132 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:14,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.4814814814814814) internal successors, (94), 27 states have internal predecessors, (94), 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) [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:45:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-24 22:45:17,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-24 22:45:17,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-24 22:45:17,402 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash -493100995, now seen corresponding path program 10 times [2021-10-24 22:45:17,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:17,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78445789] [2021-10-24 22:45:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:17,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 47 proven. 158 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-24 22:45:17,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:17,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78445789] [2021-10-24 22:45:17,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78445789] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:17,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231834072] [2021-10-24 22:45:17,568 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 22:45:17,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:17,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:17,588 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) [2021-10-24 22:45:17,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-24 22:45:17,905 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 22:45:17,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:17,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-24 22:45:17,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 120 proven. 107 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-24 22:45:18,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231834072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:18,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:18,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 28 [2021-10-24 22:45:18,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156627337] [2021-10-24 22:45:18,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-24 22:45:18,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:18,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-24 22:45:18,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2021-10-24 22:45:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:18,218 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:18,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.0344827586206895) internal successors, (117), 28 states have internal predecessors, (117), 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) [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-10-24 22:45:18,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-24 22:45:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:18,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-24 22:45:19,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-24 22:45:19,049 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:19,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:19,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1815119097, now seen corresponding path program 11 times [2021-10-24 22:45:19,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:19,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867691568] [2021-10-24 22:45:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:19,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 121 proven. 145 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-10-24 22:45:19,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:19,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867691568] [2021-10-24 22:45:19,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867691568] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:19,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110519130] [2021-10-24 22:45:19,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-24 22:45:19,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:19,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:19,190 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) [2021-10-24 22:45:19,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-24 22:45:19,652 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-10-24 22:45:19,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:19,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-24 22:45:19,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 121 proven. 145 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-10-24 22:45:19,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110519130] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:19,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:19,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-24 22:45:19,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013124924] [2021-10-24 22:45:19,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-24 22:45:19,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:19,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-24 22:45:19,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 22:45:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:19,876 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:19,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 16 states have internal predecessors, (77), 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) [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:19,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-24 22:45:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:19,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:20,178 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,SelfDestructingSolverStorable10 [2021-10-24 22:45:20,178 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:20,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1259120347, now seen corresponding path program 12 times [2021-10-24 22:45:20,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:20,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631231299] [2021-10-24 22:45:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:20,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 79 proven. 217 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-24 22:45:20,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:20,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631231299] [2021-10-24 22:45:20,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631231299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:20,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667903085] [2021-10-24 22:45:20,366 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-24 22:45:20,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:20,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:20,377 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) [2021-10-24 22:45:20,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-24 22:45:20,814 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-10-24 22:45:20,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:20,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-24 22:45:20,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:22,825 INFO L354 Elim1Store]: treesize reduction 82, result has 32.2 percent of original size [2021-10-24 22:45:22,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 269 treesize of output 135 [2021-10-24 22:45:24,852 INFO L354 Elim1Store]: treesize reduction 28, result has 58.2 percent of original size [2021-10-24 22:45:24,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 241 treesize of output 173 [2021-10-24 22:45:26,039 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 77 proven. 154 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-24 22:45:26,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667903085] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:26,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:26,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 39 [2021-10-24 22:45:26,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210453532] [2021-10-24 22:45:26,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-24 22:45:26,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:26,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-24 22:45:26,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1312, Unknown=0, NotChecked=0, Total=1482 [2021-10-24 22:45:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:26,041 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:26,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.1794871794871793) internal successors, (124), 39 states have internal predecessors, (124), 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) [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:26,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:26,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-10-24 22:45:26,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:26,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:26,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-24 22:45:30,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-24 22:45:31,113 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,SelfDestructingSolverStorable11 [2021-10-24 22:45:31,113 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:31,113 INFO L82 PathProgramCache]: Analyzing trace with hash 938665481, now seen corresponding path program 13 times [2021-10-24 22:45:31,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:31,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151118932] [2021-10-24 22:45:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:31,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 64 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-24 22:45:31,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:31,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151118932] [2021-10-24 22:45:31,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151118932] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:31,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191343759] [2021-10-24 22:45:31,329 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-24 22:45:31,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:31,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:31,330 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) [2021-10-24 22:45:31,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-24 22:45:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:31,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-24 22:45:31,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 81 proven. 83 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-24 22:45:32,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191343759] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:32,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:32,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-24 22:45:32,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996881328] [2021-10-24 22:45:32,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-24 22:45:32,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:32,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-24 22:45:32,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2021-10-24 22:45:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:32,141 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:32,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 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) [2021-10-24 22:45:32,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:32,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-24 22:45:32,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-24 22:45:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:45:32,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:32,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:32,765 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:32,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:32,766 INFO L82 PathProgramCache]: Analyzing trace with hash 269789939, now seen corresponding path program 14 times [2021-10-24 22:45:32,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:32,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576510997] [2021-10-24 22:45:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:32,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:33,100 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 169 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-24 22:45:33,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:33,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576510997] [2021-10-24 22:45:33,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576510997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:33,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560465909] [2021-10-24 22:45:33,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 22:45:33,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:33,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:33,102 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) [2021-10-24 22:45:33,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-24 22:45:33,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 22:45:33,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:33,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-24 22:45:33,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 163 proven. 100 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-10-24 22:45:33,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560465909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:33,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:33,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 26 [2021-10-24 22:45:33,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106290507] [2021-10-24 22:45:33,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-24 22:45:33,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-24 22:45:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2021-10-24 22:45:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:33,980 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:33,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 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) [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:45:33,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-10-24 22:45:33,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:33,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-24 22:45:33,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:45:33,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:45:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:45:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:45:37,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-24 22:45:38,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:38,153 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:45:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:45:38,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1418903793, now seen corresponding path program 15 times [2021-10-24 22:45:38,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:45:38,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110313373] [2021-10-24 22:45:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:45:38,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:45:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:45:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 167 proven. 342 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-10-24 22:45:38,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:45:38,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110313373] [2021-10-24 22:45:38,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110313373] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:38,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646243743] [2021-10-24 22:45:38,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:45:38,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:45:38,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:45:38,503 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) [2021-10-24 22:45:38,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-24 22:45:39,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-10-24 22:45:39,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:45:39,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-24 22:45:39,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:45:39,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:45:39,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:45:39,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:45:39,707 INFO L354 Elim1Store]: treesize reduction 48, result has 59.3 percent of original size [2021-10-24 22:45:39,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 117 [2021-10-24 22:45:41,938 INFO L354 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2021-10-24 22:45:41,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 211 treesize of output 133 [2021-10-24 22:45:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 220 proven. 83 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2021-10-24 22:45:43,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646243743] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:45:43,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:45:43,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 15] total 42 [2021-10-24 22:45:43,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103722194] [2021-10-24 22:45:43,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-24 22:45:43,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:45:43,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-24 22:45:43,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1474, Unknown=0, NotChecked=0, Total=1722 [2021-10-24 22:45:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:45:43,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:45:43,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.1666666666666665) internal successors, (133), 42 states have internal predecessors, (133), 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) [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:45:43,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:45:43,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:45:43,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:46:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:46:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:46:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-10-24 22:46:00,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-24 22:46:00,998 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,SelfDestructingSolverStorable14 [2021-10-24 22:46:00,998 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:46:00,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:46:00,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1058889421, now seen corresponding path program 16 times [2021-10-24 22:46:00,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:46:00,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609340227] [2021-10-24 22:46:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:46:00,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:46:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:46:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 309 proven. 196 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-24 22:46:01,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:46:01,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609340227] [2021-10-24 22:46:01,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609340227] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:46:01,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080367116] [2021-10-24 22:46:01,451 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 22:46:01,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:46:01,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:46:01,463 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) [2021-10-24 22:46:01,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-24 22:46:02,258 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 22:46:02,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:46:02,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-24 22:46:02,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:46:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 309 proven. 196 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-24 22:46:02,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080367116] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:46:02,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:46:02,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 32 [2021-10-24 22:46:02,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375928975] [2021-10-24 22:46:02,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-24 22:46:02,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:46:02,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-24 22:46:02,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-10-24 22:46:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:46:02,521 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:46:02,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.8484848484848486) internal successors, (94), 32 states have internal predecessors, (94), 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) [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-10-24 22:46:02,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:46:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:46:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:46:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:46:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:46:14,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-24 22:46:14,199 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,SelfDestructingSolverStorable15 [2021-10-24 22:46:14,199 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:46:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:46:14,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1391999699, now seen corresponding path program 17 times [2021-10-24 22:46:14,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:46:14,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621890188] [2021-10-24 22:46:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:46:14,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:46:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:46:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 356 proven. 337 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-10-24 22:46:14,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:46:14,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621890188] [2021-10-24 22:46:14,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621890188] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:46:14,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202363880] [2021-10-24 22:46:14,388 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-24 22:46:14,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:46:14,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:46:14,388 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) [2021-10-24 22:46:14,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-24 22:46:15,620 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 20 check-sat command(s) [2021-10-24 22:46:15,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:46:15,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-24 22:46:15,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:46:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 332 proven. 397 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-10-24 22:46:16,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202363880] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:46:16,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:46:16,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24] total 41 [2021-10-24 22:46:16,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326029539] [2021-10-24 22:46:16,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-24 22:46:16,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:46:16,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-24 22:46:16,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1396, Unknown=0, NotChecked=0, Total=1722 [2021-10-24 22:46:16,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:46:16,320 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:46:16,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.095238095238095) internal successors, (172), 41 states have internal predecessors, (172), 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) [2021-10-24 22:46:16,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:46:16,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:46:16,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:46:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:46:17,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-24 22:46:17,910 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,SelfDestructingSolverStorable16 [2021-10-24 22:46:17,911 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:46:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:46:17,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1693651705, now seen corresponding path program 18 times [2021-10-24 22:46:17,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:46:17,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041104977] [2021-10-24 22:46:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:46:17,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:46:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:46:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 287 proven. 575 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2021-10-24 22:46:18,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:46:18,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041104977] [2021-10-24 22:46:18,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041104977] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:46:18,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078455054] [2021-10-24 22:46:18,355 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-24 22:46:18,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:46:18,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:46:18,356 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) [2021-10-24 22:46:18,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-24 22:46:19,294 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-10-24 22:46:19,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:46:19,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-24 22:46:19,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:46:19,664 INFO L354 Elim1Store]: treesize reduction 20, result has 50.0 percent of original size [2021-10-24 22:46:19,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 30 [2021-10-24 22:46:21,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:46:21,326 INFO L354 Elim1Store]: treesize reduction 132, result has 40.3 percent of original size [2021-10-24 22:46:21,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 387 treesize of output 273 [2021-10-24 22:47:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 22:47:12,474 INFO L354 Elim1Store]: treesize reduction 146, result has 51.2 percent of original size [2021-10-24 22:47:12,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 2587 treesize of output 1291 [2021-10-24 22:50:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 17 proven. 568 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2021-10-24 22:50:26,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078455054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:50:26,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:50:26,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 26] total 61 [2021-10-24 22:50:26,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308862047] [2021-10-24 22:50:26,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-10-24 22:50:26,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:50:26,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-10-24 22:50:26,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=3364, Unknown=0, NotChecked=0, Total=3782 [2021-10-24 22:50:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:50:26,111 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:50:26,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.596774193548387) internal successors, (161), 61 states have internal predecessors, (161), 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) [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:50:26,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:50:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:50:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-24 22:50:30,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-10-24 22:50:30,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-24 22:50:30,277 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:50:30,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:50:30,277 INFO L82 PathProgramCache]: Analyzing trace with hash 2087448289, now seen corresponding path program 19 times [2021-10-24 22:50:30,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:50:30,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532363712] [2021-10-24 22:50:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:50:30,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:50:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:50:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 534 proven. 324 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-10-24 22:50:30,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:50:30,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532363712] [2021-10-24 22:50:30,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532363712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:50:30,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352952447] [2021-10-24 22:50:30,783 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-24 22:50:30,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:50:30,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:50:30,787 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) [2021-10-24 22:50:30,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-24 22:50:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:50:32,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-24 22:50:32,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:50:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 567 proven. 324 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-10-24 22:50:33,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352952447] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:50:33,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:50:33,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 77 [2021-10-24 22:50:33,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453801358] [2021-10-24 22:50:33,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-24 22:50:33,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:50:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-24 22:50:33,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=837, Invalid=5169, Unknown=0, NotChecked=0, Total=6006 [2021-10-24 22:50:33,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:50:33,832 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:50:33,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.5256410256410255) internal successors, (197), 77 states have internal predecessors, (197), 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) [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-10-24 22:50:33,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:50:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:50:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:50:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:50:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:50:39,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-10-24 22:50:39,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:50:39,219 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:50:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:50:39,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1293256773, now seen corresponding path program 20 times [2021-10-24 22:50:39,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:50:39,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852964639] [2021-10-24 22:50:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:50:39,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:50:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:50:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 797 proven. 873 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-10-24 22:50:40,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:50:40,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852964639] [2021-10-24 22:50:40,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852964639] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:50:40,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015867093] [2021-10-24 22:50:40,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 22:50:40,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:50:40,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:50:40,056 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) [2021-10-24 22:50:40,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-24 22:50:41,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 22:50:41,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:50:41,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-24 22:50:41,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:50:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 652 proven. 977 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2021-10-24 22:50:43,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015867093] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:50:43,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:50:43,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 28] total 75 [2021-10-24 22:50:43,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277615517] [2021-10-24 22:50:43,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-10-24 22:50:43,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:50:43,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-10-24 22:50:43,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=870, Invalid=4830, Unknown=0, NotChecked=0, Total=5700 [2021-10-24 22:50:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:50:43,067 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:50:43,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.1973684210526314) internal successors, (243), 75 states have internal predecessors, (243), 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) [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:50:43,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:50:45,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:50:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:50:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:50:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:50:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:50:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:50:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-24 22:50:45,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-24 22:50:46,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:50:46,007 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:50:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:50:46,007 INFO L82 PathProgramCache]: Analyzing trace with hash -96124567, now seen corresponding path program 21 times [2021-10-24 22:50:46,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:50:46,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720443355] [2021-10-24 22:50:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:50:46,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:50:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:50:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 678 proven. 819 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2021-10-24 22:50:46,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:50:46,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720443355] [2021-10-24 22:50:46,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720443355] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:50:46,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922325020] [2021-10-24 22:50:46,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 22:50:46,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:50:46,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:50:46,884 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) [2021-10-24 22:50:46,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-24 22:50:48,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-10-24 22:50:48,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:50:48,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-24 22:50:48,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:52:14,368 INFO L354 Elim1Store]: treesize reduction 182, result has 24.5 percent of original size [2021-10-24 22:52:14,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1070 treesize of output 450 [2021-10-24 22:52:16,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-10-24 22:52:17,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 253 proven. 448 refuted. 0 times theorem prover too weak. 1329 trivial. 0 not checked. [2021-10-24 22:52:17,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922325020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:52:17,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:52:17,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 22] total 74 [2021-10-24 22:52:17,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755712924] [2021-10-24 22:52:17,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-10-24 22:52:17,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:52:17,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-10-24 22:52:17,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1003, Invalid=4547, Unknown=0, NotChecked=0, Total=5550 [2021-10-24 22:52:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:52:17,143 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:52:17,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.506666666666667) internal successors, (188), 74 states have internal predecessors, (188), 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) [2021-10-24 22:52:17,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:52:17,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:52:17,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:52:17,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:52:17,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-10-24 22:52:17,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:53:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:53:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:53:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:53:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-24 22:53:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-10-24 22:53:36,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-24 22:53:36,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:53:36,471 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:53:36,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:53:36,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1017834345, now seen corresponding path program 22 times [2021-10-24 22:53:36,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:53:36,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634024126] [2021-10-24 22:53:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:53:36,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:53:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:53:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2429 backedges. 1114 proven. 676 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-10-24 22:53:37,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:53:37,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634024126] [2021-10-24 22:53:37,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634024126] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:53:37,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931522088] [2021-10-24 22:53:37,736 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-24 22:53:37,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:53:37,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:53:37,737 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 22:53:37,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-24 22:53:41,111 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-24 22:53:41,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:53:41,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-24 22:53:41,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:53:43,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2429 backedges. 1047 proven. 676 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2021-10-24 22:53:43,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931522088] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:53:43,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:53:43,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 109 [2021-10-24 22:53:43,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244519221] [2021-10-24 22:53:43,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2021-10-24 22:53:43,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:53:43,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2021-10-24 22:53:43,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1621, Invalid=10369, Unknown=0, NotChecked=0, Total=11990 [2021-10-24 22:53:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:53:43,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:53:43,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.3727272727272726) internal successors, (261), 109 states have internal predecessors, (261), 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) [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2021-10-24 22:53:43,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:53:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:53:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:53:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:53:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-24 22:53:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-10-24 22:53:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-10-24 22:53:57,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-24 22:53:57,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:53:57,975 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:53:57,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:53:57,976 INFO L82 PathProgramCache]: Analyzing trace with hash -966118011, now seen corresponding path program 23 times [2021-10-24 22:53:57,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:53:57,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631904393] [2021-10-24 22:53:57,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:53:57,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:53:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:53:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3555 backedges. 1337 proven. 1469 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2021-10-24 22:53:59,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:53:59,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631904393] [2021-10-24 22:53:59,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631904393] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:53:59,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991283424] [2021-10-24 22:53:59,254 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-24 22:53:59,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:53:59,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:53:59,256 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 22:53:59,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-24 22:54:05,812 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-10-24 22:54:05,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:54:05,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 74 conjunts are in the unsatisfiable core [2021-10-24 22:54:05,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:54:07,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3555 backedges. 998 proven. 1904 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2021-10-24 22:54:07,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991283424] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:54:07,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:54:07,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 36] total 99 [2021-10-24 22:54:07,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412552065] [2021-10-24 22:54:07,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2021-10-24 22:54:07,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:54:07,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-10-24 22:54:07,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1530, Invalid=8370, Unknown=0, NotChecked=0, Total=9900 [2021-10-24 22:54:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:54:07,920 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:54:07,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 3.13) internal successors, (313), 99 states have internal predecessors, (313), 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) [2021-10-24 22:54:07,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:54:07,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:54:07,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-10-24 22:54:07,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:54:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-10-24 22:54:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-10-24 22:54:13,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-24 22:54:13,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:54:13,459 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 22:54:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 22:54:13,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1067333309, now seen corresponding path program 24 times [2021-10-24 22:54:13,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-24 22:54:13,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642372214] [2021-10-24 22:54:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 22:54:13,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 22:54:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 22:54:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3606 backedges. 1652 proven. 1156 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2021-10-24 22:54:15,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-24 22:54:15,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642372214] [2021-10-24 22:54:15,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642372214] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:54:15,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606107802] [2021-10-24 22:54:15,101 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-24 22:54:15,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 22:54:15,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-24 22:54:15,101 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 22:54:15,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-24 22:54:18,724 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2021-10-24 22:54:18,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 22:54:18,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-24 22:54:18,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 22:55:19,860 INFO L354 Elim1Store]: treesize reduction 294, result has 10.4 percent of original size [2021-10-24 22:55:19,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 485 treesize of output 243 [2021-10-24 22:55:25,541 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-10-24 22:55:25,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 486 treesize of output 246 [2021-10-24 22:55:26,977 INFO L354 Elim1Store]: treesize reduction 122, result has 28.7 percent of original size [2021-10-24 22:55:26,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 478 treesize of output 252 [2021-10-24 22:55:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3606 backedges. 261 proven. 1069 refuted. 0 times theorem prover too weak. 2276 trivial. 0 not checked. [2021-10-24 22:55:28,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606107802] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 22:55:28,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 22:55:28,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 28] total 98 [2021-10-24 22:55:28,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607235410] [2021-10-24 22:55:28,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-10-24 22:55:28,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-24 22:55:28,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-10-24 22:55:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1444, Invalid=8258, Unknown=0, NotChecked=0, Total=9702 [2021-10-24 22:55:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:55:28,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-24 22:55:28,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 2.393939393939394) internal successors, (237), 98 states have internal predecessors, (237), 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) [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-10-24 22:55:28,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2021-10-24 22:55:28,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-24 22:55:28,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2021-10-24 22:55:28,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-10-24 22:55:28,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2021-10-24 22:55:28,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-24 22:55:45,365 WARN L224 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-24 22:55:45,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-24 22:55:45,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-24 22:55:45,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-24 22:55:45,573 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.MinimalSleepSetReduction.internalSuccessors(MinimalSleepSetReduction.java:132) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.(NestedIterator.java:62) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIteratorNoopConstruction.(NestedIteratorNoopConstruction.java:48) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$1(INwaOutgoingLetterAndTransitionProvider.java:124) at java.base/java.lang.Iterable.spliterator(Iterable.java:101) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:197) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:127) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:91) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:64) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:440) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:235) ... 53 more [2021-10-24 22:55:45,580 INFO L168 Benchmark]: Toolchain (without parser) took 645492.81 ms. Allocated memory was 200.3 MB in the beginning and 859.8 MB in the end (delta: 659.6 MB). Free memory was 164.9 MB in the beginning and 603.0 MB in the end (delta: -438.1 MB). Peak memory consumption was 222.5 MB. Max. memory is 8.0 GB. [2021-10-24 22:55:45,581 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 200.3 MB. Free memory was 166.1 MB in the beginning and 166.1 MB in the end (delta: 72.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-24 22:55:45,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.79 ms. Allocated memory is still 200.3 MB. Free memory was 164.9 MB in the beginning and 163.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-24 22:55:45,583 INFO L168 Benchmark]: Boogie Preprocessor took 22.43 ms. Allocated memory is still 200.3 MB. Free memory was 163.3 MB in the beginning and 162.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-24 22:55:45,583 INFO L168 Benchmark]: RCFGBuilder took 228.15 ms. Allocated memory is still 200.3 MB. Free memory was 162.3 MB in the beginning and 148.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-24 22:55:45,583 INFO L168 Benchmark]: TraceAbstraction took 645219.23 ms. Allocated memory was 200.3 MB in the beginning and 859.8 MB in the end (delta: 659.6 MB). Free memory was 148.1 MB in the beginning and 603.0 MB in the end (delta: -454.9 MB). Peak memory consumption was 204.7 MB. Max. memory is 8.0 GB. [2021-10-24 22:55:45,586 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 0.10 ms. Allocated memory is still 200.3 MB. Free memory was 166.1 MB in the beginning and 166.1 MB in the end (delta: 72.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.79 ms. Allocated memory is still 200.3 MB. Free memory was 164.9 MB in the beginning and 163.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.43 ms. Allocated memory is still 200.3 MB. Free memory was 163.3 MB in the beginning and 162.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 228.15 ms. Allocated memory is still 200.3 MB. Free memory was 162.3 MB in the beginning and 148.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 645219.23 ms. Allocated memory was 200.3 MB in the beginning and 859.8 MB in the end (delta: 659.6 MB). Free memory was 148.1 MB in the beginning and 603.0 MB in the end (delta: -454.9 MB). Peak memory consumption was 204.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-24 22:55:45,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request...