/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 11:41:05,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 11:41:05,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 11:41:05,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 11:41:05,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf [2021-10-22 11:41:05,397 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 11:41:05,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 11:41:05,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 11:41:05,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 11:41:05,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 11:41:05,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 11:41:05,400 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 11:41:05,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 11:41:05,400 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 11:41:05,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 11:41:05,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 11:41:05,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 11:41:05,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 11:41:05,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 11:41:05,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 11:41:05,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:41:05,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 11:41:05,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 11:41:05,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 11:41:05,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 11:41:05,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 11:41:05,403 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 11:41:05,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 11:41:05,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 11:41:05,404 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 11:41:05,404 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 11:41:05,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 11:41:05,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 11:41:05,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 11:41:05,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 11:41:05,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 11:41:05,627 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 11:41:05,628 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 11:41:05,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl [2021-10-22 11:41:05,629 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl' [2021-10-22 11:41:05,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 11:41:05,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 11:41:05,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 11:41:05,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 11:41:05,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 11:41:05,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 11:41:05,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 11:41:05,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 11:41:05,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 11:41:05,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 11:41:05,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 11:41:05,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 11:41:05,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 11:41:05,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/1) ... [2021-10-22 11:41:05,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:41:05,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:05,717 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 11:41:05,719 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 11:41:05,741 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 11:41:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 11:41:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 11:41:05,742 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 11:41:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 11:41:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 11:41:05,742 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 11:41:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 11:41:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 11:41:05,743 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 11:41:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 11:41:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 11:41:05,743 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 11:41:05,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 11:41:05,944 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 11:41:05,946 INFO L202 PluginConnector]: Adding new model min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:41:05 BoogieIcfgContainer [2021-10-22 11:41:05,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 11:41:05,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 11:41:05,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 11:41:05,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 11:41:05,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:41:05" (1/2) ... [2021-10-22 11:41:05,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed1fddd and model type min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:41:05, skipping insertion in model container [2021-10-22 11:41:05,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:41:05" (2/2) ... [2021-10-22 11:41:05,951 INFO L111 eAbstractionObserver]: Analyzing ICFG min-array-hom.wvr.bpl [2021-10-22 11:41:05,954 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 11:41:05,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 11:41:05,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 11:41:05,955 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 11:41:05,982 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-22 11:41:06,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 11:41:06,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:06,013 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 11:41:06,014 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 11:41:06,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 11:41:06,040 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 11:41:06,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 11:41:06,147 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:06,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:06,162 INFO L82 PathProgramCache]: Analyzing trace with hash -234537446, now seen corresponding path program 1 times [2021-10-22 11:41:06,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:06,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023202205] [2021-10-22 11:41:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:06,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:06,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:06,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023202205] [2021-10-22 11:41:06,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023202205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:41:06,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:41:06,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 11:41:06,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769292845] [2021-10-22 11:41:06,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 11:41:06,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 11:41:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 11:41:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:06,363 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:06,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 11:41:06,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:06,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:06,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 11:41:06,398 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:06,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1872873864, now seen corresponding path program 1 times [2021-10-22 11:41:06,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:06,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868033941] [2021-10-22 11:41:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:06,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:41:06,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:06,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868033941] [2021-10-22 11:41:06,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868033941] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:41:06,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:41:06,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 11:41:06,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951994490] [2021-10-22 11:41:06,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 11:41:06,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 11:41:06,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 11:41:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:06,447 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:06,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:41:06,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:06,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:06,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 11:41:06,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash 196648534, now seen corresponding path program 1 times [2021-10-22 11:41:06,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:06,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509510598] [2021-10-22 11:41:06,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:06,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:06,855 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 11:41:06,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:06,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509510598] [2021-10-22 11:41:06,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509510598] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:06,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680096890] [2021-10-22 11:41:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:06,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:06,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:06,859 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 11:41:06,859 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 11:41:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:06,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-22 11:41:06,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:41:07,419 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-22 11:41:07,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 40 [2021-10-22 11:41:07,574 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 11:41:07,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680096890] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:07,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:41:07,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-22 11:41:07,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117853473] [2021-10-22 11:41:07,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-22 11:41:07,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-22 11:41:07,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-22 11:41:07,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:07,579 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:07,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:41:07,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:07,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:07,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:07,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:07,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:07,759 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 11:41:07,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-22 11:41:07,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:07,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:07,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1778530228, now seen corresponding path program 2 times [2021-10-22 11:41:07,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:07,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887542010] [2021-10-22 11:41:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:07,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:08,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:08,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887542010] [2021-10-22 11:41:08,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887542010] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:08,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518839045] [2021-10-22 11:41:08,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:41:08,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:08,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:08,042 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 11:41:08,044 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 11:41:08,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:41:08,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:41:08,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-22 11:41:08,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:41:08,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:08,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518839045] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:08,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:41:08,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-22 11:41:08,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199570926] [2021-10-22 11:41:08,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 11:41:08,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 11:41:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-22 11:41:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:08,274 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:08,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:41:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:08,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:08,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:08,421 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 11:41:08,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:08,608 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:08,608 INFO L82 PathProgramCache]: Analyzing trace with hash -485803280, now seen corresponding path program 1 times [2021-10-22 11:41:08,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:08,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213778455] [2021-10-22 11:41:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:08,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:41:08,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:08,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213778455] [2021-10-22 11:41:08,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213778455] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:08,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964099323] [2021-10-22 11:41:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:08,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:08,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:08,666 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 11:41:08,667 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 11:41:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:08,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-22 11:41:08,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:41:08,908 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:41:08,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964099323] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:08,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:41:08,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-10-22 11:41:08,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946257149] [2021-10-22 11:41:08,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-22 11:41:08,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:08,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-22 11:41:08,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-22 11:41:08,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:08,911 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:08,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:41:08,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:08,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:08,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:08,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:08,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:09,026 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 11:41:09,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:09,217 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:09,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:09,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1400384050, now seen corresponding path program 2 times [2021-10-22 11:41:09,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:09,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236248735] [2021-10-22 11:41:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:09,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:10,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:10,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236248735] [2021-10-22 11:41:10,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236248735] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:10,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470175125] [2021-10-22 11:41:10,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:41:10,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:10,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:10,440 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 11:41:10,443 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 11:41:10,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:41:10,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:41:10,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-22 11:41:10,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:41:12,781 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-10-22 11:41:12,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 234 treesize of output 151 [2021-10-22 11:41:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:13,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470175125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:13,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:41:13,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-10-22 11:41:13,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547042511] [2021-10-22 11:41:13,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-22 11:41:13,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-22 11:41:13,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-10-22 11:41:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:13,630 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:13,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 23 states have internal predecessors, (58), 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 11:41:13,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:13,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:13,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:13,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:13,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:13,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:15,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:41:15,325 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 11:41:15,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:15,512 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash 155791660, now seen corresponding path program 3 times [2021-10-22 11:41:15,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:15,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957845114] [2021-10-22 11:41:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:15,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:15,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:15,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957845114] [2021-10-22 11:41:15,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957845114] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:15,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001718934] [2021-10-22 11:41:15,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:41:15,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:15,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:15,659 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 11:41:15,660 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 11:41:15,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-22 11:41:15,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:41:15,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 11:41:15,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:41:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:16,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001718934] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:16,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:41:16,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-10-22 11:41:16,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308837357] [2021-10-22 11:41:16,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-22 11:41:16,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:16,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-22 11:41:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-10-22 11:41:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:16,206 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:16,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 20 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:41:16,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:16,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:41:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:41:16,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-22 11:41:16,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:16,758 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:16,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:16,759 INFO L82 PathProgramCache]: Analyzing trace with hash 717797480, now seen corresponding path program 4 times [2021-10-22 11:41:16,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:16,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287531696] [2021-10-22 11:41:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:16,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:41:16,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:16,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287531696] [2021-10-22 11:41:16,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287531696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:16,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560315198] [2021-10-22 11:41:16,837 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:41:16,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:16,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:16,837 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 11:41:16,839 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 11:41:17,150 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:41:17,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:41:17,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 11:41:17,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:41:17,326 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 11:41:17,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560315198] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:17,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:41:17,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-10-22 11:41:17,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290621792] [2021-10-22 11:41:17,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-22 11:41:17,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:41:17,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-22 11:41:17,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-10-22 11:41:17,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:17,327 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:41:17,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:41:17,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:41:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:41:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:41:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:41:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:41:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:41:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:41:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:41:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:41:17,529 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 11:41:17,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:17,721 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:41:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:41:17,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1986237766, now seen corresponding path program 5 times [2021-10-22 11:41:17,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:41:17,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954905328] [2021-10-22 11:41:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:41:17,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:41:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:41:42,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:42,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954905328] [2021-10-22 11:41:42,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954905328] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:42,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084583213] [2021-10-22 11:41:42,903 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:41:42,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:42,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:42,904 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 11:41:42,904 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 11:41:44,049 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-22 11:41:44,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:41:44,051 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-22 11:41:44,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:42:19,024 INFO L354 Elim1Store]: treesize reduction 70, result has 4.1 percent of original size [2021-10-22 11:42:19,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 1015 treesize of output 588 [2021-10-22 11:42:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:42:22,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084583213] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:42:22,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:42:22,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-10-22 11:42:22,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243859590] [2021-10-22 11:42:22,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-22 11:42:22,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:42:22,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-22 11:42:22,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=899, Unknown=0, NotChecked=0, Total=992 [2021-10-22 11:42:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:22,650 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:42:22,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:22,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-22 11:42:28,352 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 11:42:28,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-22 11:42:28,548 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:42:28,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:42:28,548 INFO L82 PathProgramCache]: Analyzing trace with hash 407047392, now seen corresponding path program 6 times [2021-10-22 11:42:28,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:42:28,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907377385] [2021-10-22 11:42:28,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:42:28,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:42:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:42:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:42:28,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:42:28,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907377385] [2021-10-22 11:42:28,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907377385] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:42:28,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432886887] [2021-10-22 11:42:28,676 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 11:42:28,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:42:28,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:42:28,678 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 11:42:28,679 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 11:42:30,526 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-22 11:42:30,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:42:30,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 11:42:30,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:42:30,848 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:42:30,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432886887] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:42:30,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:42:30,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-10-22 11:42:30,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307270825] [2021-10-22 11:42:30,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-22 11:42:30,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:42:30,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-22 11:42:30,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-10-22 11:42:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:30,850 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:42:30,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:42:30,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:30,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:30,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-22 11:42:30,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-22 11:42:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:31,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-22 11:42:31,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-22 11:42:31,348 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:42:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:42:31,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1936053314, now seen corresponding path program 7 times [2021-10-22 11:42:31,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:42:31,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550180432] [2021-10-22 11:42:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:42:31,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:42:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-10-22 11:55:34,052 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 11:55:34,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-22 11:55:34,053 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-5-3-6-10-6-13-8-14-6-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-5-5-5-2-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. [2021-10-22 11:55:34,055 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 11:55:34,055 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 11:55:34,055 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 11:55:34,077 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 11:55:34,077 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 11:55:34,078 INFO L202 PluginConnector]: Adding new model min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:55:34 BasicIcfg [2021-10-22 11:55:34,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 11:55:34,079 INFO L168 Benchmark]: Toolchain (without parser) took 868432.13 ms. Allocated memory was 195.0 MB in the beginning and 879.8 MB in the end (delta: 684.7 MB). Free memory was 159.0 MB in the beginning and 639.3 MB in the end (delta: -480.2 MB). Peak memory consumption was 598.8 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:34,079 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.08 ms. Allocated memory is still 195.0 MB. Free memory is still 160.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 11:55:34,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.70 ms. Allocated memory is still 195.0 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:34,080 INFO L168 Benchmark]: Boogie Preprocessor took 18.30 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 156.6 MB in the end (delta: 983.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:34,080 INFO L168 Benchmark]: RCFGBuilder took 258.71 ms. Allocated memory is still 195.0 MB. Free memory was 156.5 MB in the beginning and 143.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:34,080 INFO L168 Benchmark]: TraceAbstraction took 868131.92 ms. Allocated memory was 195.0 MB in the beginning and 879.8 MB in the end (delta: 684.7 MB). Free memory was 142.7 MB in the beginning and 639.3 MB in the end (delta: -496.5 MB). Peak memory consumption was 582.1 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:34,080 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 11:55:34,082 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 11:55:34,084 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 0.08 ms. Allocated memory is still 195.0 MB. Free memory is still 160.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.70 ms. Allocated memory is still 195.0 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.30 ms. Allocated memory is still 195.0 MB. Free memory was 157.5 MB in the beginning and 156.6 MB in the end (delta: 983.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 258.71 ms. Allocated memory is still 195.0 MB. Free memory was 156.5 MB in the beginning and 143.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 868131.92 ms. Allocated memory was 195.0 MB in the beginning and 879.8 MB in the end (delta: 684.7 MB). Free memory was 142.7 MB in the beginning and 639.3 MB in the end (delta: -496.5 MB). Peak memory consumption was 582.1 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: 2317, positive: 1898, positive conditional: 1681, positive unconditional: 217, negative: 419, negative conditional: 419, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1898, positive: 1898, positive conditional: 0, positive unconditional: 1898, 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: 213, positive: 213, positive conditional: 0, positive unconditional: 213, 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: 213, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1898, positive: 1685, positive conditional: 0, positive unconditional: 1685, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 213, unknown conditional: 0, unknown unconditional: 213] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 213, Positive conditional cache size: 0, Positive unconditional cache size: 213, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 419 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 40, Number of persistent set computation: 21, Number of trivial persistent sets: 10, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2317, positive: 1898, positive conditional: 1681, positive unconditional: 217, negative: 419, negative conditional: 419, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1898, positive: 1898, positive conditional: 0, positive unconditional: 1898, 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: 213, positive: 213, positive conditional: 0, positive unconditional: 213, 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: 213, positive: 213, positive conditional: 0, positive unconditional: 213, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1898, positive: 1685, positive conditional: 0, positive unconditional: 1685, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 213, unknown conditional: 0, unknown unconditional: 213] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 213, Positive conditional cache size: 0, Positive unconditional cache size: 213, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 419 - 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-5-3-6-10-6-13-8-14-6-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-5-5-5-2-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 59]: 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 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-5-3-6-10-6-13-8-14-6-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-5-5-5-2-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 59]: 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 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-5-3-6-10-6-13-8-14-6-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-5-5-5-2-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 60]: 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 47 with TraceHistMax 7,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-2-5-3-6-10-6-13-8-14-6-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-8-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-14-5-5-5-5-2-5-1 term,while PolyPacSimplificationTermWalker was simplifying 5 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 868066.5ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32.3ms, PartialOrderReductionTime: 8697.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 143, 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: 58.4ms SsaConstructionTime, 302.8ms SatisfiabilityAnalysisTime, 70456.7ms InterpolantComputationTime, 546 NumberOfCodeBlocks, 546 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 528 ConstructedInterpolants, 14 QuantifiedInterpolants, 34127 SizeOfPredicates, 34 NumberOfNonLiveVariables, 659 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 101/375 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