/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 03:55:02,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 03:55:02,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 03:55:02,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 03:55:02,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-08-07 03:55:02,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 03:55:02,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 03:55:02,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 03:55:02,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 03:55:02,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 03:55:02,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 03:55:02,805 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 03:55:02,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 03:55:02,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 03:55:02,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 03:55:02,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 03:55:02,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 03:55:02,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 03:55:02,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 03:55:02,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-07 03:55:02,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 03:55:03,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 03:55:03,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 03:55:03,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 03:55:03,118 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 03:55:03,123 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 03:55:03,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2021-08-07 03:55:03,124 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2021-08-07 03:55:03,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 03:55:03,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 03:55:03,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 03:55:03,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 03:55:03,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 03:55:03,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 03:55:03,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 03:55:03,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 03:55:03,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 03:55:03,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 03:55:03,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 03:55:03,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 03:55:03,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 03:55:03,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/1) ... [2021-08-07 03:55:03,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 03:55:03,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:03,315 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) [2021-08-07 03:55:03,381 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 [2021-08-07 03:55:03,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 03:55:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 03:55:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 03:55:03,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 03:55:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 03:55:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 03:55:03,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 03:55:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 03:55:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 03:55:03,414 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-07 03:55:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-07 03:55:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-07 03:55:03,415 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-07 03:55:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-07 03:55:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-07 03:55:03,416 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 03:55:03,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 03:55:03,619 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 03:55:03,620 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 03:55:03 BoogieIcfgContainer [2021-08-07 03:55:03,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 03:55:03,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 03:55:03,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 03:55:03,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 03:55:03,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:55:03" (1/2) ... [2021-08-07 03:55:03,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee58fd1 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 03:55:03, skipping insertion in model container [2021-08-07 03:55:03,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 03:55:03" (2/2) ... [2021-08-07 03:55:03,626 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2021-08-07 03:55:03,629 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 03:55:03,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 03:55:03,629 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 03:55:03,629 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 03:55:03,672 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-07 03:55:03,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 03:55:03,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:03,702 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) [2021-08-07 03:55:03,703 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 [2021-08-07 03:55:03,720 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 03:55:03,724 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 [2021-08-07 03:55:03,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-07 03:55:03,899 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:03,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:03,903 INFO L82 PathProgramCache]: Analyzing trace with hash 876935847, now seen corresponding path program 1 times [2021-08-07 03:55:03,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:03,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292882050] [2021-08-07 03:55:03,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:03,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:04,114 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-07 03:55:04,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:04,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292882050] [2021-08-07 03:55:04,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292882050] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 03:55:04,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 03:55:04,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-07 03:55:04,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299401855] [2021-08-07 03:55:04,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-07 03:55:04,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:04,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-07 03:55:04,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-07 03:55:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:04,130 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:04,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:55:04,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-07 03:55:04,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:04,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:04,182 INFO L82 PathProgramCache]: Analyzing trace with hash 798101277, now seen corresponding path program 2 times [2021-08-07 03:55:04,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:04,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9071149] [2021-08-07 03:55:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:04,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-08-07 03:55:04,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:04,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9071149] [2021-08-07 03:55:04,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9071149] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 03:55:04,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 03:55:04,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-07 03:55:04,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342705402] [2021-08-07 03:55:04,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-07 03:55:04,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:04,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-07 03:55:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-07 03:55:04,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:04,258 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:04,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:55:04,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:04,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-07 03:55:04,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash 749231435, now seen corresponding path program 3 times [2021-08-07 03:55:04,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:04,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546825744] [2021-08-07 03:55:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:04,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 31 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-07 03:55:04,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:04,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546825744] [2021-08-07 03:55:04,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546825744] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:04,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108470958] [2021-08-07 03:55:04,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 03:55:04,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:04,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:04,535 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) [2021-08-07 03:55:04,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 03:55:04,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-07 03:55:04,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:04,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-07 03:55:04,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:04,903 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-08-07 03:55:04,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108470958] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 03:55:04,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-07 03:55:04,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2021-08-07 03:55:04,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031667879] [2021-08-07 03:55:04,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-07 03:55:04,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:04,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-07 03:55:04,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-08-07 03:55:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:04,908 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:04,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-08-07 03:55:04,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:04,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:05,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 03:55:05,202 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,SelfDestructingSolverStorable2 [2021-08-07 03:55:05,202 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:05,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:05,203 INFO L82 PathProgramCache]: Analyzing trace with hash 976871671, now seen corresponding path program 4 times [2021-08-07 03:55:05,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:05,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880587366] [2021-08-07 03:55:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:05,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-08-07 03:55:05,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:05,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880587366] [2021-08-07 03:55:05,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880587366] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-07 03:55:05,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-07 03:55:05,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-07 03:55:05,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849429716] [2021-08-07 03:55:05,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-07 03:55:05,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:05,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-07 03:55:05,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-07 03:55:05,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:05,248 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:05,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 03:55:05,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:05,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:05,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-07 03:55:05,269 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:05,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:05,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1880297963, now seen corresponding path program 5 times [2021-08-07 03:55:05,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:05,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935722407] [2021-08-07 03:55:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:05,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-07 03:55:05,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:05,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935722407] [2021-08-07 03:55:05,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935722407] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:05,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029576023] [2021-08-07 03:55:05,331 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 03:55:05,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:05,332 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) [2021-08-07 03:55:05,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 03:55:05,411 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-07 03:55:05,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:05,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-07 03:55:05,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-07 03:55:05,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029576023] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:05,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:05,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2021-08-07 03:55:05,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814138096] [2021-08-07 03:55:05,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-07 03:55:05,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:05,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-07 03:55:05,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-07 03:55:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:05,703 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:05,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 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) [2021-08-07 03:55:05,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:05,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 03:55:05,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-07 03:55:06,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:06,035 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:06,036 INFO L82 PathProgramCache]: Analyzing trace with hash -2069852586, now seen corresponding path program 6 times [2021-08-07 03:55:06,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:06,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328505389] [2021-08-07 03:55:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:06,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:06,085 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-08-07 03:55:06,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:06,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328505389] [2021-08-07 03:55:06,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328505389] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:06,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290134069] [2021-08-07 03:55:06,086 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 03:55:06,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:06,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:06,087 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) [2021-08-07 03:55:06,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 03:55:06,167 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-08-07 03:55:06,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:06,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-07 03:55:06,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:55:06,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290134069] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:06,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:06,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 12 [2021-08-07 03:55:06,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677936233] [2021-08-07 03:55:06,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-07 03:55:06,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-07 03:55:06,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-08-07 03:55:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:06,692 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:06,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 states have internal predecessors, (83), 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) [2021-08-07 03:55:06,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:06,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:06,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:06,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:06,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 03:55:06,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:06,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 03:55:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:06,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-07 03:55:07,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:07,161 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:07,162 INFO L82 PathProgramCache]: Analyzing trace with hash -108384661, now seen corresponding path program 7 times [2021-08-07 03:55:07,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:07,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394113806] [2021-08-07 03:55:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:07,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 13 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-07 03:55:07,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:07,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394113806] [2021-08-07 03:55:07,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394113806] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:07,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226963771] [2021-08-07 03:55:07,264 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 03:55:07,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:07,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:07,265 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) [2021-08-07 03:55:07,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 03:55:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:07,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-07 03:55:07,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:08,003 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 8 proven. 66 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 03:55:08,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226963771] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:08,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:08,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2021-08-07 03:55:08,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620089021] [2021-08-07 03:55:08,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-07 03:55:08,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:08,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-07 03:55:08,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2021-08-07 03:55:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:08,005 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:08,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 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) [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:08,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:55:08,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:55:08,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 03:55:08,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:08,753 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:08,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:08,753 INFO L82 PathProgramCache]: Analyzing trace with hash 537474430, now seen corresponding path program 8 times [2021-08-07 03:55:08,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:08,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389083934] [2021-08-07 03:55:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:08,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:09,487 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:55:09,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:09,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389083934] [2021-08-07 03:55:09,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389083934] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:09,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403059638] [2021-08-07 03:55:09,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 03:55:09,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:09,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:09,489 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) [2021-08-07 03:55:09,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 03:55:09,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 03:55:09,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:09,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 63 conjunts are in the unsatisfiable core [2021-08-07 03:55:09,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:11,611 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-08-07 03:55:11,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 42 [2021-08-07 03:55:12,956 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-08-07 03:55:12,957 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 753 treesize of output 519 [2021-08-07 03:55:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 28 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:55:44,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403059638] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:44,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:44,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2021-08-07 03:55:44,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210532640] [2021-08-07 03:55:44,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-08-07 03:55:44,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:44,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-08-07 03:55:44,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1667, Unknown=0, NotChecked=0, Total=1806 [2021-08-07 03:55:44,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:44,218 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:44,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.953488372093023) internal successors, (127), 42 states have internal predecessors, (127), 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) [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:55:44,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:55:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-08-07 03:55:51,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-08-07 03:55:51,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:51,842 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:55:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:55:51,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1417705319, now seen corresponding path program 9 times [2021-08-07 03:55:51,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:55:51,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890009121] [2021-08-07 03:55:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:55:51,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:55:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:55:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-07 03:55:53,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:55:53,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890009121] [2021-08-07 03:55:53,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890009121] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:53,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493649100] [2021-08-07 03:55:53,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 03:55:53,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:55:53,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:55:53,111 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) [2021-08-07 03:55:53,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 03:55:53,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-08-07 03:55:53,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:55:53,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 83 conjunts are in the unsatisfiable core [2021-08-07 03:55:53,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:55:56,476 INFO L354 Elim1Store]: treesize reduction 386, result has 7.4 percent of original size [2021-08-07 03:55:56,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 109 treesize of output 85 [2021-08-07 03:55:57,933 INFO L354 Elim1Store]: treesize reduction 356, result has 14.6 percent of original size [2021-08-07 03:55:57,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 682 treesize of output 564 [2021-08-07 03:55:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 18 proven. 188 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 03:55:59,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493649100] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:55:59,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:55:59,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 30] total 55 [2021-08-07 03:55:59,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19985715] [2021-08-07 03:55:59,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-08-07 03:55:59,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:55:59,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-08-07 03:55:59,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=2906, Unknown=0, NotChecked=0, Total=3080 [2021-08-07 03:55:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:55:59,522 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:55:59,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.892857142857143) internal successors, (162), 55 states have internal predecessors, (162), 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) [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-08-07 03:55:59,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:56:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:56:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:56:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:56:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:56:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-08-07 03:56:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-08-07 03:56:17,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 03:56:17,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:56:17,220 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:56:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:56:17,221 INFO L82 PathProgramCache]: Analyzing trace with hash -31921470, now seen corresponding path program 10 times [2021-08-07 03:56:17,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:56:17,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988932242] [2021-08-07 03:56:17,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:56:17,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:56:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:56:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 87 proven. 216 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-08-07 03:56:17,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:56:17,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988932242] [2021-08-07 03:56:17,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988932242] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:56:17,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623493603] [2021-08-07 03:56:17,390 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 03:56:17,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:56:17,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:56:17,390 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) [2021-08-07 03:56:17,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 03:56:18,029 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 03:56:18,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:56:18,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-07 03:56:18,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:56:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 99 proven. 245 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-08-07 03:56:19,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623493603] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:56:19,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 03:56:19,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 30 [2021-08-07 03:56:19,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247184038] [2021-08-07 03:56:19,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-08-07 03:56:19,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 03:56:19,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-08-07 03:56:19,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=741, Unknown=0, NotChecked=0, Total=930 [2021-08-07 03:56:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:56:19,156 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 03:56:19,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.129032258064516) internal successors, (159), 30 states have internal predecessors, (159), 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) [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-08-07 03:56:19,157 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 03:56:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 03:56:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 03:56:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 03:56:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 03:56:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-07 03:56:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-08-07 03:56:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-08-07 03:56:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-08-07 03:56:33,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-07 03:56:33,272 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,SelfDestructingSolverStorable9 [2021-08-07 03:56:33,273 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 03:56:33,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 03:56:33,273 INFO L82 PathProgramCache]: Analyzing trace with hash -86698961, now seen corresponding path program 11 times [2021-08-07 03:56:33,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 03:56:33,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074250421] [2021-08-07 03:56:33,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 03:56:33,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 03:56:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 03:56:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 28 proven. 823 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-08-07 03:56:35,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 03:56:35,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074250421] [2021-08-07 03:56:35,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074250421] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 03:56:35,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314047679] [2021-08-07 03:56:35,799 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 03:56:35,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 03:56:35,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 03:56:35,800 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) [2021-08-07 03:56:35,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-07 03:56:36,542 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-08-07 03:56:36,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 03:56:36,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 178 conjunts are in the unsatisfiable core [2021-08-07 03:56:36,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 03:57:07,073 WARN L207 SmtUtils]: Spent 8.46 s on a formula simplification. DAG size of input: 1815 DAG size of output: 555 [2021-08-07 03:57:07,085 INFO L354 Elim1Store]: treesize reduction 3934, result has 22.9 percent of original size [2021-08-07 03:57:07,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 30 select indices, 30 select index equivalence classes, 0 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 435 case distinctions, treesize of input 240 treesize of output 1294 [2021-08-07 04:00:03,387 INFO L354 Elim1Store]: treesize reduction 1066, result has 0.1 percent of original size [2021-08-07 04:00:03,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 3128 treesize of output 2264 [2021-08-07 04:00:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 0 proven. 1038 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 04:00:09,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314047679] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 04:00:09,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 04:00:09,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 61] total 97 [2021-08-07 04:00:09,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140927062] [2021-08-07 04:00:09,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2021-08-07 04:00:09,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:00:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-08-07 04:00:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=9250, Unknown=0, NotChecked=0, Total=9506 [2021-08-07 04:00:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:00:09,596 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:00:09,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.7244897959183674) internal successors, (267), 97 states have internal predecessors, (267), 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) [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-08-07 04:00:09,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:01:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:01:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:01:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:01:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:01:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 04:01:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 04:01:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-07 04:01:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-08-07 04:01:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-08-07 04:01:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-08-07 04:01:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2021-08-07 04:01:56,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-07 04:01:56,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 04:01:56,517 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 04:01:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:01:56,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1801553315, now seen corresponding path program 12 times [2021-08-07 04:01:56,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:01:56,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009477246] [2021-08-07 04:01:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:01:56,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:01:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:01:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 181 proven. 757 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2021-08-07 04:01:56,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:01:56,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009477246] [2021-08-07 04:01:56,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009477246] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 04:01:56,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111095888] [2021-08-07 04:01:56,802 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 04:01:56,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 04:01:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 04:01:56,803 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) [2021-08-07 04:01:56,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-07 04:01:58,441 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-08-07 04:01:58,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 04:01:58,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-07 04:01:58,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 04:02:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 174 proven. 1086 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-07 04:02:00,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111095888] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 04:02:00,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 04:02:00,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 34] total 51 [2021-08-07 04:02:00,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254494747] [2021-08-07 04:02:00,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-08-07 04:02:00,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 04:02:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-08-07 04:02:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=2190, Unknown=0, NotChecked=0, Total=2652 [2021-08-07 04:02:00,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:02:00,325 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 04:02:00,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.0576923076923075) internal successors, (263), 51 states have internal predecessors, (263), 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) [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 210 states. [2021-08-07 04:02:00,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 04:02:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:02:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:02:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-07 04:02:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2021-08-07 04:02:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-08-07 04:02:04,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-07 04:02:04,416 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,SelfDestructingSolverStorable11 [2021-08-07 04:02:04,416 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 04:02:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 04:02:04,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1858420395, now seen corresponding path program 13 times [2021-08-07 04:02:04,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 04:02:04,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220433009] [2021-08-07 04:02:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 04:02:04,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 04:02:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:02:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 32 proven. 2142 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2021-08-07 04:02:08,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 04:02:08,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220433009] [2021-08-07 04:02:08,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220433009] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 04:02:08,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50365685] [2021-08-07 04:02:08,881 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 04:02:08,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 04:02:08,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 04:02:08,882 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) [2021-08-07 04:02:08,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-07 04:02:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 04:02:10,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 303 conjunts are in the unsatisfiable core [2021-08-07 04:02:10,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 04:03:22,392 INFO L354 Elim1Store]: treesize reduction 3850, result has 0.0 percent of original size [2021-08-07 04:03:22,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 397 treesize of output 193 [2021-08-07 04:03:42,381 INFO L354 Elim1Store]: treesize reduction 3266, result has 0.0 percent of original size [2021-08-07 04:03:42,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 8718 treesize of output 6274 Received shutdown request... [2021-08-07 04:09:23,939 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-08-07 04:09:23,941 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 04:09:23,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 04:09:23,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 04:09:23,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 04:09:23,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-07 04:09:24,164 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,SelfDestructingSolverStorable12 [2021-08-07 04:09:24,165 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 270 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 2ms.. [2021-08-07 04:09:24,166 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 04:09:24,166 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 04:09:24,166 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-07 04:09:24,166 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-07 04:09:24,173 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 04:09:24,173 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 04:09:24,174 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 04:09:24 BasicIcfg [2021-08-07 04:09:24,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 04:09:24,175 INFO L168 Benchmark]: Toolchain (without parser) took 861015.08 ms. Allocated memory was 181.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 160.5 MB in the beginning and 1.0 GB in the end (delta: -859.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-07 04:09:24,175 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 181.4 MB. Free memory was 161.9 MB in the beginning and 161.7 MB in the end (delta: 115.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 04:09:24,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.72 ms. Allocated memory is still 181.4 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 04:09:24,175 INFO L168 Benchmark]: Boogie Preprocessor took 14.92 ms. Allocated memory is still 181.4 MB. Free memory was 158.9 MB in the beginning and 158.0 MB in the end (delta: 869.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 04:09:24,175 INFO L168 Benchmark]: RCFGBuilder took 407.04 ms. Allocated memory is still 181.4 MB. Free memory was 157.8 MB in the beginning and 142.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-08-07 04:09:24,175 INFO L168 Benchmark]: TraceAbstraction took 860552.71 ms. Allocated memory was 181.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 141.6 MB in the beginning and 1.0 GB in the end (delta: -878.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-07 04:09:24,175 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 0.12 ms. Allocated memory is still 181.4 MB. Free memory was 161.9 MB in the beginning and 161.7 MB in the end (delta: 115.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.72 ms. Allocated memory is still 181.4 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.92 ms. Allocated memory is still 181.4 MB. Free memory was 158.9 MB in the beginning and 158.0 MB in the end (delta: 869.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 407.04 ms. Allocated memory is still 181.4 MB. Free memory was 157.8 MB in the beginning and 142.1 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 860552.71 ms. Allocated memory was 181.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 141.6 MB in the beginning and 1.0 GB in the end (delta: -878.6 MB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 647409, positive: 606103, positive conditional: 606103, positive unconditional: 0, negative: 41306, negative conditional: 41306, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 610705, positive: 606103, positive conditional: 606103, positive unconditional: 0, negative: 4602, negative conditional: 4602, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 610705, positive: 606103, positive conditional: 606103, positive unconditional: 0, negative: 4602, negative conditional: 4602, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 753380, positive: 606103, positive conditional: 605701, positive unconditional: 402, negative: 147277, negative conditional: 142675, negative unconditional: 4602, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 753380, positive: 606103, positive conditional: 362211, positive unconditional: 243892, negative: 147277, negative conditional: 55778, negative unconditional: 91499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 753380, positive: 606103, positive conditional: 362211, positive unconditional: 243892, negative: 147277, negative conditional: 55778, negative unconditional: 91499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2269, positive: 1033, positive conditional: 737, positive unconditional: 296, negative: 1236, negative conditional: 1226, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2269, positive: 413, positive conditional: 0, positive unconditional: 413, negative: 1856, negative conditional: 0, negative unconditional: 1856, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1856, positive: 620, positive conditional: 608, positive unconditional: 12, negative: 1236, negative conditional: 1226, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3025, positive: 1071, positive conditional: 1042, positive unconditional: 29, negative: 1954, negative conditional: 1895, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 753380, positive: 605070, positive conditional: 361474, positive unconditional: 243596, negative: 146041, negative conditional: 54552, negative unconditional: 91489, unknown: 2269, unknown conditional: 1963, unknown unconditional: 306] , Statistics on independence cache: Total cache size (in pairs): 2269, Positive cache size: 1033, Positive conditional cache size: 737, Positive unconditional cache size: 296, Negative cache size: 1236, Negative conditional cache size: 1226, Negative unconditional cache size: 10, Eliminated conditions: 330387, Maximal queried relation: 12, Independence queries for same thread: 36704 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 270 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 2ms.. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 270 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 2ms.. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 270 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 2ms.. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 270 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 2ms.. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 270 with TraceHistMax 26,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 860473.3ms, OverallIterations: 13, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 150643.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 681, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109.0ms SsaConstructionTime, 732.8ms SatisfiabilityAnalysisTime, 263510.7ms InterpolantComputationTime, 1755 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 1734 ConstructedInterpolants, 6 QuantifiedInterpolants, 53570 SizeOfPredicates, 33 NumberOfNonLiveVariables, 2175 ConjunctsInSsa, 412 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 1572/6550 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown