/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/max-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 11:40:23,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 11:40:23,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 11:40:23,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-22 11:40:23,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-22 11:40:23,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-22 11:40:23,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-22 11:40:23,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-22 11:40:23,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-22 11:40:23,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-22 11:40:23,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-22 11:40:23,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-10-22 11:40:23,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 11:40:23,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 11:40:23,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 11:40:23,997 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 11:40:24,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 11:40:24,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 11:40:24,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 11:40:24,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 11:40:24,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 11:40:24,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 11:40:24,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 11:40:24,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 11:40:24,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 11:40:24,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:40:24,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 11:40:24,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 11:40:24,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 11:40:24,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 11:40:24,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 11:40:24,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 11:40:24,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 11:40:24,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 11:40:24,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 11:40:24,219 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 11:40:24,223 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 11:40:24,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl [2021-10-22 11:40:24,224 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl' [2021-10-22 11:40:24,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 11:40:24,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 11:40:24,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 11:40:24,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 11:40:24,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 11:40:24,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 11:40:24,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 11:40:24,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 11:40:24,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 11:40:24,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 11:40:24,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 11:40:24,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 11:40:24,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 11:40:24,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/1) ... [2021-10-22 11:40:24,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:40:24,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:24,335 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 11:40:24,359 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 11:40:24,392 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 11:40:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 11:40:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 11:40:24,393 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 11:40:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 11:40:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 11:40:24,393 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 11:40:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 11:40:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 11:40:24,393 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 11:40:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 11:40:24,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 11:40:24,394 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 11:40:24,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 11:40:24,608 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 11:40:24,610 INFO L202 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:40:24 BoogieIcfgContainer [2021-10-22 11:40:24,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 11:40:24,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 11:40:24,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 11:40:24,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 11:40:24,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:40:24" (1/2) ... [2021-10-22 11:40:24,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca98302 and model type max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:40:24, skipping insertion in model container [2021-10-22 11:40:24,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:40:24" (2/2) ... [2021-10-22 11:40:24,631 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun.wvr.bpl [2021-10-22 11:40:24,635 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 11:40:24,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 11:40:24,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 11:40:24,635 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 11:40:24,693 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-22 11:40:24,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 11:40:24,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:24,721 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 11:40:24,752 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 11:40:24,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 11:40:24,792 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 11:40:24,792 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 11:40:24,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash -234537446, now seen corresponding path program 1 times [2021-10-22 11:40:24,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:24,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528094177] [2021-10-22 11:40:24,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:24,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:24,989 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 11:40:24,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:24,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528094177] [2021-10-22 11:40:24,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528094177] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:40:24,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:40:24,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 11:40:24,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478685715] [2021-10-22 11:40:24,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 11:40:24,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:25,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 11:40:25,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 11:40:25,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:25,005 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:25,006 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 11:40:25,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:25,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:25,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 11:40:25,029 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:25,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:25,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1872873864, now seen corresponding path program 1 times [2021-10-22 11:40:25,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:25,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550136604] [2021-10-22 11:40:25,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:25,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:25,079 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 11:40:25,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:25,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550136604] [2021-10-22 11:40:25,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550136604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:40:25,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:40:25,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 11:40:25,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492821773] [2021-10-22 11:40:25,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 11:40:25,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 11:40:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 11:40:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:25,083 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:25,083 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 11:40:25,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:25,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:25,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 11:40:25,134 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:25,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:25,135 INFO L82 PathProgramCache]: Analyzing trace with hash 196648534, now seen corresponding path program 1 times [2021-10-22 11:40:25,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:25,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385387398] [2021-10-22 11:40:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:25,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:25,566 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 11:40:25,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:25,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385387398] [2021-10-22 11:40:25,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385387398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:25,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396928565] [2021-10-22 11:40:25,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:25,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:40:25,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:25,570 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 11:40:25,614 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 11:40:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:25,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-22 11:40:25,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:40:26,281 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-22 11:40:26,282 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 11:40:26,444 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 11:40:26,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396928565] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:26,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:40:26,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-22 11:40:26,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787549731] [2021-10-22 11:40:26,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-22 11:40:26,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-22 11:40:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-22 11:40:26,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:26,450 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:26,451 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 11:40:26,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:26,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:26,451 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:26,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:26,625 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 11:40:26,819 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 11:40:26,820 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:26,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1778530228, now seen corresponding path program 2 times [2021-10-22 11:40:26,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:26,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706267630] [2021-10-22 11:40:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:26,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:26,882 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 11:40:26,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:26,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706267630] [2021-10-22 11:40:26,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706267630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:26,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112282973] [2021-10-22 11:40:26,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:40:26,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:40:26,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:26,886 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 11:40:26,887 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 11:40:27,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:40:27,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:40:27,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-22 11:40:27,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:40:27,144 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 11:40:27,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112282973] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:27,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:40:27,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-22 11:40:27,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306906535] [2021-10-22 11:40:27,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 11:40:27,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:27,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 11:40:27,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-10-22 11:40:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:27,146 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:27,146 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 11:40:27,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:27,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:27,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:27,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:27,282 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 11:40:27,476 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 11:40:27,476 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:27,477 INFO L82 PathProgramCache]: Analyzing trace with hash -485803280, now seen corresponding path program 1 times [2021-10-22 11:40:27,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:27,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622063751] [2021-10-22 11:40:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:27,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:27,573 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 11:40:27,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:27,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622063751] [2021-10-22 11:40:27,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622063751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:27,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31363630] [2021-10-22 11:40:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:27,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:40:27,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:27,575 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 11:40:27,591 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 11:40:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:27,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-22 11:40:27,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:40:27,832 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 11:40:27,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31363630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:27,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:40:27,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-10-22 11:40:27,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139490101] [2021-10-22 11:40:27,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-22 11:40:27,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:27,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-22 11:40:27,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-22 11:40:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:27,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:27,835 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 11:40:27,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:27,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:27,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:27,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:27,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:27,941 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 11:40:28,139 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 11:40:28,140 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:28,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:28,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1400384050, now seen corresponding path program 2 times [2021-10-22 11:40:28,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:28,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435907993] [2021-10-22 11:40:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:28,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:29,523 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 11:40:29,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:29,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435907993] [2021-10-22 11:40:29,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435907993] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:29,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501438583] [2021-10-22 11:40:29,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:40:29,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:40:29,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:29,525 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 11:40:29,526 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 11:40:29,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:40:29,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:40:29,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-22 11:40:29,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:40:31,778 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-10-22 11:40:31,779 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 11:40:32,538 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 11:40:32,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501438583] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:32,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:40:32,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2021-10-22 11:40:32,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905210900] [2021-10-22 11:40:32,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-22 11:40:32,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:32,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-22 11:40:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-10-22 11:40:32,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:32,542 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:32,542 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 11:40:32,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:32,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:32,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:32,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:32,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:32,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:40:34,492 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 11:40:34,675 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 11:40:34,676 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:34,676 INFO L82 PathProgramCache]: Analyzing trace with hash 155791660, now seen corresponding path program 3 times [2021-10-22 11:40:34,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:34,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415445339] [2021-10-22 11:40:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:34,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:34,768 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 11:40:34,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:34,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415445339] [2021-10-22 11:40:34,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415445339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:34,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426278] [2021-10-22 11:40:34,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:40:34,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:40:34,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:34,770 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 11:40:34,772 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 11:40:35,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-22 11:40:35,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:40:35,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 11:40:35,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:40:35,319 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 11:40:35,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:35,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:40:35,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-10-22 11:40:35,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248192123] [2021-10-22 11:40:35,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-22 11:40:35,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:35,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-22 11:40:35,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-10-22 11:40:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:35,321 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:35,321 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 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:40:35,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:40:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:40:35,635 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 11:40:35,823 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 11:40:35,823 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:35,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:35,824 INFO L82 PathProgramCache]: Analyzing trace with hash 717797480, now seen corresponding path program 4 times [2021-10-22 11:40:35,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:35,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333889737] [2021-10-22 11:40:35,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:35,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:40:35,923 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 11:40:35,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:40:35,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333889737] [2021-10-22 11:40:35,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333889737] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:35,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245570034] [2021-10-22 11:40:35,924 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:40:35,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:40:35,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:40:35,925 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 11:40:35,926 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 11:40:36,237 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:40:36,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:40:36,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 11:40:36,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:40:36,400 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 11:40:36,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245570034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:40:36,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:40:36,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-10-22 11:40:36,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475009275] [2021-10-22 11:40:36,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-22 11:40:36,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:40:36,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-22 11:40:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-10-22 11:40:36,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:36,402 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:40:36,402 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 11:40:36,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:36,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:36,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:36,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:36,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:36,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:40:36,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:40:36,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:40:36,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:40:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:40:36,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-22 11:40:36,752 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 11:40:36,753 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:40:36,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:40:36,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1986237766, now seen corresponding path program 5 times [2021-10-22 11:40:36,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:40:36,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358263930] [2021-10-22 11:40:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:40:36,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:40:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:41:36,990 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 11:41:36,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:41:36,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358263930] [2021-10-22 11:41:36,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358263930] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:41:36,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626255636] [2021-10-22 11:41:36,991 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:41:36,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:41:36,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:41:36,992 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 11:41:36,993 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 11:41:37,475 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-22 11:41:37,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:41:37,476 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-22 11:41:37,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:42:09,971 INFO L354 Elim1Store]: treesize reduction 70, result has 4.1 percent of original size [2021-10-22 11:42:09,971 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 11:42:13,589 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 11:42:13,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626255636] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:42:13,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:42:13,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-10-22 11:42:13,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147268097] [2021-10-22 11:42:13,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-22 11:42:13,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:42:13,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-22 11:42:13,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=895, Unknown=0, NotChecked=0, Total=992 [2021-10-22 11:42:13,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:13,591 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:42:13,591 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 11:42:13,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:13,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:13,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:13,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:13,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:13,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:13,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:13,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:13,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:19,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-22 11:42:19,379 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 11:42:19,562 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 11:42:19,562 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:42:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:42:19,563 INFO L82 PathProgramCache]: Analyzing trace with hash 407047392, now seen corresponding path program 6 times [2021-10-22 11:42:19,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:42:19,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821574602] [2021-10-22 11:42:19,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:42:19,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:42:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:42:19,718 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 11:42:19,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:42:19,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821574602] [2021-10-22 11:42:19,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821574602] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:42:19,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496626623] [2021-10-22 11:42:19,719 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 11:42:19,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:42:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:42:19,720 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 11:42:19,721 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 11:42:20,775 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-22 11:42:20,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:42:20,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 11:42:20,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:42:21,109 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 11:42:21,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496626623] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:42:21,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:42:21,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-10-22 11:42:21,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099318812] [2021-10-22 11:42:21,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-22 11:42:21,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:42:21,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-22 11:42:21,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-10-22 11:42:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:21,113 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:42:21,113 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 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-22 11:42:21,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:42:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 11:42:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:42:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-22 11:42:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 11:42:21,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 11:42:21,620 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 11:42:21,621 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 11:42:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:42:21,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1936053314, now seen corresponding path program 7 times [2021-10-22 11:42:21,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:42:21,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082471466] [2021-10-22 11:42:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:42:21,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:42:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-10-22 11:55:01,842 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 11:55:01,846 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 11:55:01,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-22 11:55:01,846 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 ∨-4-5-3-5-4-5-5-7-5-7-5-7-5-7-5-7-5-7-5-7-5-5-5-7-5-5-3-4-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-1 context. [2021-10-22 11:55:01,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 11:55:01,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 11:55:01,847 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 11:55:01,852 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 11:55:01,854 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 11:55:01,854 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 11:55:01,855 INFO L202 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:55:01 BasicIcfg [2021-10-22 11:55:01,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 11:55:01,856 INFO L168 Benchmark]: Toolchain (without parser) took 877606.38 ms. Allocated memory was 180.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 143.0 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 904.2 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:01,856 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 180.4 MB. Free memory was 144.2 MB in the beginning and 144.1 MB in the end (delta: 118.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 11:55:01,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.20 ms. Allocated memory is still 180.4 MB. Free memory was 142.9 MB in the beginning and 141.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:01,857 INFO L168 Benchmark]: Boogie Preprocessor took 12.91 ms. Allocated memory is still 180.4 MB. Free memory was 141.4 MB in the beginning and 140.4 MB in the end (delta: 968.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:01,857 INFO L168 Benchmark]: RCFGBuilder took 311.80 ms. Allocated memory is still 180.4 MB. Free memory was 140.4 MB in the beginning and 127.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:01,857 INFO L168 Benchmark]: TraceAbstraction took 877244.36 ms. Allocated memory was 180.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 127.2 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 887.4 MB. Max. memory is 8.0 GB. [2021-10-22 11:55:01,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 180.4 MB. Free memory was 144.2 MB in the beginning and 144.1 MB in the end (delta: 118.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.20 ms. Allocated memory is still 180.4 MB. Free memory was 142.9 MB in the beginning and 141.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.91 ms. Allocated memory is still 180.4 MB. Free memory was 141.4 MB in the beginning and 140.4 MB in the end (delta: 968.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 311.80 ms. Allocated memory is still 180.4 MB. Free memory was 140.4 MB in the beginning and 127.5 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 877244.36 ms. Allocated memory was 180.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 127.2 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 887.4 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]: 24, 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 ∨-4-5-3-5-4-5-5-7-5-7-5-7-5-7-5-7-5-7-5-7-5-5-5-7-5-5-3-4-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-1 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 ∨-4-5-3-5-4-5-5-7-5-7-5-7-5-7-5-7-5-7-5-7-5-5-5-7-5-5-3-4-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-1 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 ∨-4-5-3-5-4-5-5-7-5-7-5-7-5-7-5-7-5-7-5-7-5-5-5-7-5-5-3-4-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-1 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 ∨-4-5-3-5-4-5-5-7-5-7-5-7-5-7-5-7-5-7-5-7-5-5-5-7-5-5-3-4-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-2-1 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: 877134.5ms, OverallIterations: 11, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.8ms, PartialOrderReductionTime: 8909.6ms, 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: 50.6ms SsaConstructionTime, 308.3ms SatisfiabilityAnalysisTime, 103221.3ms InterpolantComputationTime, 546 NumberOfCodeBlocks, 546 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 528 ConstructedInterpolants, 14 QuantifiedInterpolants, 32798 SizeOfPredicates, 33 NumberOfNonLiveVariables, 659 ConjunctsInSsa, 155 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