/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 22:14:34,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 22:14:34,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 22:14:34,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 22:14:34,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 22:14:34,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 22:14:34,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 22:14:34,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf [2021-10-22 22:14:34,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 22:14:34,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 22:14:34,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 22:14:34,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 22:14:34,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 22:14:34,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 22:14:34,120 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 22:14:34,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 22:14:34,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 22:14:34,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 22:14:34,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 22:14:34,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 22:14:34,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 22:14:34,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 22:14:34,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 22:14:34,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 22:14:34,123 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 22:14:34,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 22:14:34,124 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-22 22:14:34,124 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 22:14:34,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 22:14:34,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 22:14:34,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 22:14:34,296 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 22:14:34,297 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 22:14:34,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-10-22 22:14:34,298 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-10-22 22:14:34,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 22:14:34,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 22:14:34,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 22:14:34,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 22:14:34,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 22:14:34,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 22:14:34,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 22:14:34,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 22:14:34,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 22:14:34,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 22:14:34,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 22:14:34,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 22:14:34,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 22:14:34,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/1) ... [2021-10-22 22:14:34,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 22:14:34,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:34,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-22 22:14:34,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-22 22:14:34,397 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 22:14:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 22:14:34,397 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 22:14:34,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 22:14:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 22:14:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 22:14:34,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 22:14:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 22:14:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 22:14:34,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 22:14:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 22:14:34,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 22:14:34,399 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 22:14:34,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 22:14:34,545 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 22:14:34,546 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:34 BoogieIcfgContainer [2021-10-22 22:14:34,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 22:14:34,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 22:14:34,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 22:14:34,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 22:14:34,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:14:34" (1/2) ... [2021-10-22 22:14:34,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191b1ee5 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:14:34, skipping insertion in model container [2021-10-22 22:14:34,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:34" (2/2) ... [2021-10-22 22:14:34,553 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-10-22 22:14:34,556 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 22:14:34,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 22:14:34,556 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 22:14:34,556 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 22:14:34,623 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-22 22:14:34,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 22:14:34,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:34,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 22:14:34,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-22 22:14:34,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 22:14:34,699 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 22:14:34,699 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 22:14:34,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:34,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1016797939, now seen corresponding path program 1 times [2021-10-22 22:14:34,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:34,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678430422] [2021-10-22 22:14:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:34,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:14:34,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:34,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678430422] [2021-10-22 22:14:34,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678430422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 22:14:34,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 22:14:34,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 22:14:34,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966029708] [2021-10-22 22:14:34,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 22:14:34,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:14:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 22:14:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 22:14:34,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:34,958 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:14:34,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:14:34,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:34,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 22:14:34,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:34,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:34,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1444919218, now seen corresponding path program 1 times [2021-10-22 22:14:34,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:34,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95592058] [2021-10-22 22:14:34,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:34,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:35,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:14:35,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:35,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95592058] [2021-10-22 22:14:35,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95592058] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:35,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933926569] [2021-10-22 22:14:35,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:35,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:35,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:35,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:14:35,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 22:14:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:35,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 22:14:35,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:14:35,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2021-10-22 22:14:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:14:35,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933926569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:35,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:14:35,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-10-22 22:14:35,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864065284] [2021-10-22 22:14:35,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 22:14:35,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:14:35,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 22:14:35,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-22 22:14:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:35,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:14:35,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:14:35,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:35,847 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:35,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:35,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:36,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-22 22:14:36,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-22 22:14:36,200 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:36,200 INFO L82 PathProgramCache]: Analyzing trace with hash -327162702, now seen corresponding path program 1 times [2021-10-22 22:14:36,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:36,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937385695] [2021-10-22 22:14:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:36,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 22:14:36,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:36,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937385695] [2021-10-22 22:14:36,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937385695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:36,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701591979] [2021-10-22 22:14:36,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:36,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:36,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:36,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:14:36,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 22:14:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:36,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-22 22:14:36,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:14:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:14:36,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701591979] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:36,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:14:36,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-22 22:14:36,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012741895] [2021-10-22 22:14:36,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 22:14:36,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:14:36,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 22:14:36,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-22 22:14:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:36,525 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:14:36,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:14:36,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:36,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:36,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:36,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-22 22:14:36,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:36,843 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:36,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:36,844 INFO L82 PathProgramCache]: Analyzing trace with hash 868953682, now seen corresponding path program 2 times [2021-10-22 22:14:36,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:36,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683023306] [2021-10-22 22:14:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:36,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:37,401 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:14:37,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:37,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683023306] [2021-10-22 22:14:37,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683023306] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:37,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331729018] [2021-10-22 22:14:37,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 22:14:37,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:37,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:37,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:14:37,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 22:14:37,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 22:14:37,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:14:37,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-22 22:14:37,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:14:39,974 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-10-22 22:14:39,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 81 [2021-10-22 22:14:40,011 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 22:14:40,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 141 [2021-10-22 22:14:40,046 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-10-22 22:14:40,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 165 treesize of output 165 [2021-10-22 22:14:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:14:45,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331729018] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:45,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:14:45,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 32 [2021-10-22 22:14:45,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901501846] [2021-10-22 22:14:45,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-22 22:14:45,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:14:45,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-22 22:14:45,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=805, Unknown=2, NotChecked=0, Total=992 [2021-10-22 22:14:45,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:45,693 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:14:45,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 32 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:14:45,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:45,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:45,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:45,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:14:53,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 22:14:54,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:54,055 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:54,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:54,055 INFO L82 PathProgramCache]: Analyzing trace with hash -203503534, now seen corresponding path program 3 times [2021-10-22 22:14:54,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:54,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845165376] [2021-10-22 22:14:54,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:54,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:54,168 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 22 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:14:54,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:54,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845165376] [2021-10-22 22:14:54,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845165376] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:54,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278549855] [2021-10-22 22:14:54,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 22:14:54,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:54,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:54,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:14:54,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 22:14:54,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-22 22:14:54,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:14:54,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-22 22:14:54,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:14:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:14:54,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278549855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:54,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:14:54,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-10-22 22:14:54,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458434890] [2021-10-22 22:14:54,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-22 22:14:54,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:14:54,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-22 22:14:54,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-10-22 22:14:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:54,564 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:14:54,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:14:54,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:54,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:14:54,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:14:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:14:54,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 22:14:54,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:54,977 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:54,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:54,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1366388929, now seen corresponding path program 4 times [2021-10-22 22:14:54,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:54,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977358966] [2021-10-22 22:14:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:54,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:14:55,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:55,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977358966] [2021-10-22 22:14:55,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977358966] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:55,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394922999] [2021-10-22 22:14:55,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 22:14:55,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:55,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:55,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:14:55,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 22:14:55,277 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 22:14:55,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:14:55,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-22 22:14:55,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:14:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 35 proven. 67 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:14:55,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394922999] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:55,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:14:55,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2021-10-22 22:14:55,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202753754] [2021-10-22 22:14:55,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-22 22:14:55,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:14:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-22 22:14:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2021-10-22 22:14:55,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:55,574 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:14:55,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.5) internal successors, (77), 22 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:14:55,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:55,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:55,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:55,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:14:55,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:14:55,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:14:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:14:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:14:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:14:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:14:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:14:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:14:55,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-22 22:14:56,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:56,091 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:14:56,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:14:56,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2024223634, now seen corresponding path program 5 times [2021-10-22 22:14:56,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:14:56,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755210050] [2021-10-22 22:14:56,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:14:56,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:14:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:14:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:14:57,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:14:57,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755210050] [2021-10-22 22:14:57,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755210050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:14:57,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235945600] [2021-10-22 22:14:57,673 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 22:14:57,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:14:57,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:14:57,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:14:57,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 22:14:57,877 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-22 22:14:57,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:14:57,878 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-22 22:14:57,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:15:26,276 INFO L354 Elim1Store]: treesize reduction 48, result has 54.3 percent of original size [2021-10-22 22:15:26,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 139 treesize of output 167 [2021-10-22 22:15:26,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 22:15:26,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 167 treesize of output 531 [2021-10-22 22:15:26,558 INFO L354 Elim1Store]: treesize reduction 48, result has 54.3 percent of original size [2021-10-22 22:15:26,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 679 treesize of output 623 [2021-10-22 22:16:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:16:01,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235945600] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:16:01,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:16:01,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 65 [2021-10-22 22:16:01,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106013590] [2021-10-22 22:16:01,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-10-22 22:16:01,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:16:01,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-10-22 22:16:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=3683, Unknown=7, NotChecked=0, Total=4160 [2021-10-22 22:16:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:16:01,979 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:16:01,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.7230769230769232) internal successors, (112), 65 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:01,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:16:27,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:16:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:16:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:16:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:16:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 22:16:27,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-22 22:16:28,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:16:28,168 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:16:28,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:16:28,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1636651146, now seen corresponding path program 6 times [2021-10-22 22:16:28,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:16:28,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068169272] [2021-10-22 22:16:28,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:16:28,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:16:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:16:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 127 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:16:28,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:16:28,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068169272] [2021-10-22 22:16:28,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068169272] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:16:28,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826103992] [2021-10-22 22:16:28,471 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 22:16:28,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:16:28,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:16:28,472 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:16:28,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 22:16:28,765 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-10-22 22:16:28,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:16:28,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-22 22:16:28,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:16:29,239 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 92 proven. 102 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-10-22 22:16:29,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826103992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:16:29,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:16:29,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 41 [2021-10-22 22:16:29,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495272917] [2021-10-22 22:16:29,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-22 22:16:29,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:16:29,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-22 22:16:29,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1345, Unknown=0, NotChecked=0, Total=1640 [2021-10-22 22:16:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:16:29,242 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:16:29,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 41 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:16:29,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:16:29,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:16:29,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:16:29,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:29,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:16:29,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:29,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 22:16:29,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:16:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:16:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:16:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:16:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:16:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 22:16:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 22:16:30,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-22 22:16:30,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-22 22:16:30,766 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:16:30,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:16:30,766 INFO L82 PathProgramCache]: Analyzing trace with hash -854581494, now seen corresponding path program 7 times [2021-10-22 22:16:30,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:16:30,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396764385] [2021-10-22 22:16:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:16:30,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:16:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:16:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 127 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:16:31,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:16:31,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396764385] [2021-10-22 22:16:31,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396764385] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:16:31,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563068843] [2021-10-22 22:16:31,198 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 22:16:31,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:16:31,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:16:31,199 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:16:31,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 22:16:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:16:31,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-22 22:16:31,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:16:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 143 proven. 374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:16:32,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563068843] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:16:32,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:16:32,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 43 [2021-10-22 22:16:32,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694945939] [2021-10-22 22:16:32,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-22 22:16:32,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:16:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-22 22:16:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1499, Unknown=0, NotChecked=0, Total=1806 [2021-10-22 22:16:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:16:32,072 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:16:32,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.116279069767442) internal successors, (134), 43 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:16:32,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-10-22 22:16:32,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:16:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-22 22:16:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 22:16:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-22 22:16:33,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 22:16:33,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:16:33,266 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:16:33,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:16:33,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1065546921, now seen corresponding path program 8 times [2021-10-22 22:16:33,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:16:33,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549153067] [2021-10-22 22:16:33,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:16:33,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:16:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:16:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 114 proven. 449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:16:39,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:16:39,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549153067] [2021-10-22 22:16:39,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549153067] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:16:39,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155254771] [2021-10-22 22:16:39,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 22:16:39,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:16:39,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:16:39,753 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 22:16:39,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 22:16:40,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 22:16:40,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:16:40,179 WARN L261 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 136 conjunts are in the unsatisfiable core [2021-10-22 22:16:40,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:18:49,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:49,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:18:53,628 INFO L354 Elim1Store]: treesize reduction 1648, result has 36.2 percent of original size [2021-10-22 22:18:53,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 57 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 243 case distinctions, treesize of input 365 treesize of output 1205 [2021-10-22 22:19:07,807 WARN L207 SmtUtils]: Spent 14.15 s on a formula simplification that was a NOOP. DAG size: 1910 [2021-10-22 22:19:07,808 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 22:19:07,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 25 select indices, 25 select index equivalence classes, 0 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 300 case distinctions, treesize of input 1205 treesize of output 6549 [2021-10-22 22:19:08,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:08,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:19:15,104 WARN L207 SmtUtils]: Spent 6.81 s on a formula simplification. DAG size of input: 1031 DAG size of output: 491 [2021-10-22 22:19:15,106 INFO L354 Elim1Store]: treesize reduction 1648, result has 36.2 percent of original size [2021-10-22 22:19:15,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 57 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 243 case distinctions, treesize of input 8503 treesize of output 7471 Received shutdown request... [2021-10-22 22:28:42,551 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 22:28:42,552 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 22:28:42,559 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 22:28:42,559 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 22:28:42,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-22 22:28:42,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-22 22:28:42,752 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 2 iterations of DualJunctionQuantifierElimination. [2021-10-22 22:28:42,754 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 22:28:42,754 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 22:28:42,754 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 22:28:42,759 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 22:28:42,759 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 22:28:42,760 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:28:42 BasicIcfg [2021-10-22 22:28:42,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 22:28:42,761 INFO L168 Benchmark]: Toolchain (without parser) took 848443.23 ms. Allocated memory was 173.0 MB in the beginning and 704.6 MB in the end (delta: 531.6 MB). Free memory was 130.4 MB in the beginning and 511.0 MB in the end (delta: -380.7 MB). Peak memory consumption was 442.4 MB. Max. memory is 8.0 GB. [2021-10-22 22:28:42,761 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 173.0 MB. Free memory is still 131.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 22:28:42,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.12 ms. Allocated memory is still 173.0 MB. Free memory was 130.4 MB in the beginning and 128.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-22 22:28:42,762 INFO L168 Benchmark]: Boogie Preprocessor took 15.31 ms. Allocated memory is still 173.0 MB. Free memory was 128.9 MB in the beginning and 127.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 22:28:42,762 INFO L168 Benchmark]: RCFGBuilder took 193.45 ms. Allocated memory is still 173.0 MB. Free memory was 127.8 MB in the beginning and 115.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-22 22:28:42,762 INFO L168 Benchmark]: TraceAbstraction took 848213.25 ms. Allocated memory was 173.0 MB in the beginning and 704.6 MB in the end (delta: 531.6 MB). Free memory was 115.4 MB in the beginning and 511.0 MB in the end (delta: -395.7 MB). Peak memory consumption was 426.7 MB. Max. memory is 8.0 GB. [2021-10-22 22:28:42,763 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 0.09 ms. Allocated memory is still 173.0 MB. Free memory is still 131.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.12 ms. Allocated memory is still 173.0 MB. Free memory was 130.4 MB in the beginning and 128.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.31 ms. Allocated memory is still 173.0 MB. Free memory was 128.9 MB in the beginning and 127.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 193.45 ms. Allocated memory is still 173.0 MB. Free memory was 127.8 MB in the beginning and 115.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 848213.25 ms. Allocated memory was 173.0 MB in the beginning and 704.6 MB in the end (delta: 531.6 MB). Free memory was 115.4 MB in the beginning and 511.0 MB in the end (delta: -395.7 MB). Peak memory consumption was 426.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2573, positive: 2224, positive conditional: 1868, positive unconditional: 356, negative: 349, negative conditional: 349, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2224, positive: 2224, positive conditional: 0, positive unconditional: 2224, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 312, positive: 312, positive conditional: 0, positive unconditional: 312, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 312, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2224, positive: 1912, positive conditional: 0, positive unconditional: 1912, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 312, Positive conditional cache size: 0, Positive unconditional cache size: 312, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 349 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 68, Number of persistent set computation: 39, Number of trivial persistent sets: 17, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2573, positive: 2224, positive conditional: 1868, positive unconditional: 356, negative: 349, negative conditional: 349, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2224, positive: 2224, positive conditional: 0, positive unconditional: 2224, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 312, positive: 312, positive conditional: 0, positive unconditional: 312, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 312, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2224, positive: 1912, positive conditional: 0, positive unconditional: 1912, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 312, Positive conditional cache size: 0, Positive unconditional cache size: 312, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 349 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 2 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 54]: 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 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 2 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 54]: 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 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 2 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 55]: 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 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 2 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 848100.0ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.5ms, PartialOrderReductionTime: 37341.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 214, 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: 53.4ms SsaConstructionTime, 218.8ms SatisfiabilityAnalysisTime, 77952.1ms InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 910 ConstructedInterpolants, 32 QuantifiedInterpolants, 16691 SizeOfPredicates, 41 NumberOfNonLiveVariables, 883 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 678/2181 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