/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 21:20:23,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 21:20:23,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 21:20:23,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-22 21:20:23,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-22 21:20:23,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-22 21:20:23,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-22 21:20:23,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-22 21:20:23,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-22 21:20:23,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-22 21:20:23,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-22 21:20:23,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-22 21:20:23,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 21:20:23,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 21:20:23,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 21:20:23,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 21:20:23,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 21:20:23,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 21:20:23,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 21:20:23,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 21:20:23,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 21:20:23,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 21:20:23,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 21:20:23,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 21:20:23,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-22 21:20:23,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-22 21:20:23,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-22 21:20:23,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-22 21:20:23,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-22 21:20:23,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-22 21:20:23,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-22 21:20:23,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-22 21:20:23,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-22 21:20:23,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-22 21:20:23,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-22 21:20:23,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-22 21:20:23,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-22 21:20:23,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-22 21:20:23,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 21:20:23,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 21:20:23,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 21:20:23,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf [2021-10-22 21:20:23,728 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 21:20:23,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 21:20:23,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 21:20:23,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 21:20:23,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 21:20:23,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 21:20:23,730 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 21:20:23,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 21:20:23,730 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 21:20:23,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 21:20:23,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 21:20:23,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 21:20:23,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 21:20:23,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 21:20:23,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 21:20:23,733 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 21:20:23,733 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 21:20:23,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 21:20:23,733 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-22 21:20:23,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 21:20:23,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 21:20:23,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 21:20:23,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 21:20:23,931 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 21:20:23,933 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 21:20:23,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl [2021-10-22 21:20:23,933 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl' [2021-10-22 21:20:23,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 21:20:23,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 21:20:23,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 21:20:23,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 21:20:23,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 21:20:23,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 21:20:23,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 21:20:23,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 21:20:23,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 21:20:23,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 21:20:23,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 21:20:23,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 21:20:23,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 21:20:23,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/1) ... [2021-10-22 21:20:23,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 21:20:23,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:24,001 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 21:20:24,007 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 21:20:24,028 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 21:20:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 21:20:24,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 21:20:24,029 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 21:20:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 21:20:24,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 21:20:24,029 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 21:20:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 21:20:24,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 21:20:24,030 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 21:20:24,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 21:20:24,228 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-22 21:20:24,229 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-10-22 21:20:24,229 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-10-22 21:20:24,230 INFO L202 PluginConnector]: Adding new model unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:20:24 BoogieIcfgContainer [2021-10-22 21:20:24,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 21:20:24,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 21:20:24,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 21:20:24,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 21:20:24,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 09:20:23" (1/2) ... [2021-10-22 21:20:24,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2d8cf8 and model type unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:20:24, skipping insertion in model container [2021-10-22 21:20:24,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:20:24" (2/2) ... [2021-10-22 21:20:24,251 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.bpl [2021-10-22 21:20:24,254 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 21:20:24,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 21:20:24,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 21:20:24,254 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 21:20:24,296 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-22 21:20:24,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 21:20:24,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:24,364 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 21:20:24,366 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 21:20:24,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 21:20:24,389 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 21:20:24,389 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-22 21:20:24,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:24,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1007135010, now seen corresponding path program 1 times [2021-10-22 21:20:24,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:24,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056523368] [2021-10-22 21:20:24,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:24,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:24,536 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 21:20:24,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:24,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056523368] [2021-10-22 21:20:24,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056523368] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 21:20:24,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 21:20:24,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-22 21:20:24,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472238424] [2021-10-22 21:20:24,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 21:20:24,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 21:20:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 21:20:24,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:24,556 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:24,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 21:20:24,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:24,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 21:20:24,568 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:24,571 INFO L82 PathProgramCache]: Analyzing trace with hash -518110957, now seen corresponding path program 1 times [2021-10-22 21:20:24,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:24,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128465288] [2021-10-22 21:20:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:24,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:24,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:24,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128465288] [2021-10-22 21:20:24,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128465288] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 21:20:24,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 21:20:24,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 21:20:24,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270579327] [2021-10-22 21:20:24,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 21:20:24,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 21:20:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 21:20:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:24,633 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:24,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 21:20:24,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:24,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:24,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:24,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 21:20:24,660 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:24,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:24,662 INFO L82 PathProgramCache]: Analyzing trace with hash 2055784312, now seen corresponding path program 1 times [2021-10-22 21:20:24,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:24,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399756961] [2021-10-22 21:20:24,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:24,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:24,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:24,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399756961] [2021-10-22 21:20:24,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399756961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:24,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279609549] [2021-10-22 21:20:24,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:24,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:24,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:24,714 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 21:20:24,715 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 21:20:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:24,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-22 21:20:24,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:24,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279609549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:24,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:24,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-22 21:20:24,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609270263] [2021-10-22 21:20:24,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 21:20:24,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 21:20:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 21:20:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:24,872 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:24,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 21:20:24,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:24,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:24,873 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:24,904 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 21:20:25,089 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 21:20:25,089 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:25,090 INFO L82 PathProgramCache]: Analyzing trace with hash 878257961, now seen corresponding path program 2 times [2021-10-22 21:20:25,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:25,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930608120] [2021-10-22 21:20:25,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:25,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:25,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:25,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930608120] [2021-10-22 21:20:25,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930608120] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:25,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267557522] [2021-10-22 21:20:25,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 21:20:25,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:25,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:25,142 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 21:20:25,143 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 21:20:25,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 21:20:25,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:25,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-22 21:20:25,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:25,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267557522] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:25,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:25,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-10-22 21:20:25,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817371078] [2021-10-22 21:20:25,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-22 21:20:25,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-22 21:20:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-22 21:20:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:25,237 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:25,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 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 21:20:25,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:25,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,237 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:25,271 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 21:20:25,467 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 21:20:25,467 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:25,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1265320552, now seen corresponding path program 3 times [2021-10-22 21:20:25,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:25,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182123864] [2021-10-22 21:20:25,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:25,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:25,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:25,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182123864] [2021-10-22 21:20:25,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182123864] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:25,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91676834] [2021-10-22 21:20:25,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 21:20:25,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:25,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:25,507 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 21:20:25,508 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 21:20:25,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-22 21:20:25,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:25,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-22 21:20:25,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:25,667 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 21:20:25,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-10-22 21:20:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:25,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91676834] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:25,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:25,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-10-22 21:20:25,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427261388] [2021-10-22 21:20:25,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 21:20:25,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:25,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 21:20:25,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-22 21:20:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:25,722 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:25,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 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 21:20:25,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:25,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:25,722 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:25,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-22 21:20:25,975 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 21:20:25,975 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:25,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:25,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1003222281, now seen corresponding path program 4 times [2021-10-22 21:20:25,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:25,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043354939] [2021-10-22 21:20:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:25,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:26,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:26,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043354939] [2021-10-22 21:20:26,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043354939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:26,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679973130] [2021-10-22 21:20:26,036 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 21:20:26,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:26,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:26,037 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 21:20:26,038 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 21:20:26,080 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 21:20:26,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:26,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-22 21:20:26,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:26,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679973130] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:26,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:26,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-22 21:20:26,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022444834] [2021-10-22 21:20:26,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-22 21:20:26,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:26,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-22 21:20:26,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-22 21:20:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:26,135 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:26,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 21:20:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:26,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:26,215 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 21:20:26,415 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 21:20:26,415 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:26,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1972474434, now seen corresponding path program 5 times [2021-10-22 21:20:26,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:26,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303647651] [2021-10-22 21:20:26,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:26,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 21:20:26,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:26,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303647651] [2021-10-22 21:20:26,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303647651] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:26,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242318282] [2021-10-22 21:20:26,471 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 21:20:26,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:26,475 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 21:20:26,476 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 21:20:26,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-22 21:20:26,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:26,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 21:20:26,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-22 21:20:26,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242318282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:26,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:26,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-22 21:20:26,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666930546] [2021-10-22 21:20:26,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-22 21:20:26,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:26,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-22 21:20:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-22 21:20:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:26,611 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:26,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 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 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:26,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:26,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-22 21:20:26,907 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 21:20:26,907 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1576556162, now seen corresponding path program 6 times [2021-10-22 21:20:26,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:26,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862248185] [2021-10-22 21:20:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:26,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:27,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:27,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862248185] [2021-10-22 21:20:27,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862248185] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:27,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176995704] [2021-10-22 21:20:27,015 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 21:20:27,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:27,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:27,016 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 21:20:27,017 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 21:20:27,102 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-22 21:20:27,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:27,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-22 21:20:27,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:27,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176995704] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:27,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:27,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-22 21:20:27,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666523052] [2021-10-22 21:20:27,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-22 21:20:27,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:27,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-22 21:20:27,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-10-22 21:20:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:27,173 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:27,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 states have internal predecessors, (22), 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 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:27,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:27,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-22 21:20:27,495 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 21:20:27,497 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:27,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:27,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1729011735, now seen corresponding path program 7 times [2021-10-22 21:20:27,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:27,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686403784] [2021-10-22 21:20:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:27,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 21:20:27,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:27,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686403784] [2021-10-22 21:20:27,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686403784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:27,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337907928] [2021-10-22 21:20:27,591 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 21:20:27,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:27,591 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 21:20:27,592 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 21:20:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:27,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-22 21:20:27,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-22 21:20:27,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337907928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:27,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:27,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 15 [2021-10-22 21:20:27,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132856744] [2021-10-22 21:20:27,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-22 21:20:27,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:27,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-22 21:20:27,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-10-22 21:20:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:27,800 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:27,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.75) internal successors, (28), 15 states have internal predecessors, (28), 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 21:20:27,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:27,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:27,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:27,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:27,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:27,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:27,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:20:27,971 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 21:20:28,154 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 21:20:28,154 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:28,155 INFO L82 PathProgramCache]: Analyzing trace with hash 283318104, now seen corresponding path program 8 times [2021-10-22 21:20:28,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:28,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885499566] [2021-10-22 21:20:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:28,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:28,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:28,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885499566] [2021-10-22 21:20:28,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885499566] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:28,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282212835] [2021-10-22 21:20:28,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 21:20:28,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:28,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:28,273 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 21:20:28,273 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 21:20:28,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 21:20:28,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:28,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-22 21:20:28,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:28,759 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 21:20:28,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-10-22 21:20:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:32,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282212835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:32,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:32,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 23 [2021-10-22 21:20:32,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126982793] [2021-10-22 21:20:32,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-22 21:20:32,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:32,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-22 21:20:32,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-10-22 21:20:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:32,878 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:32,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.5) internal successors, (36), 23 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 21:20:32,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:32,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:20:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:20:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:32,996 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 21:20:33,179 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 21:20:33,179 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:33,180 INFO L82 PathProgramCache]: Analyzing trace with hash -480558167, now seen corresponding path program 9 times [2021-10-22 21:20:33,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:33,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80197100] [2021-10-22 21:20:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:33,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 67 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:33,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:33,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80197100] [2021-10-22 21:20:33,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80197100] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:33,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779658602] [2021-10-22 21:20:33,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 21:20:33,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:33,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:33,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:20:33,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 21:20:33,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-22 21:20:33,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:33,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-22 21:20:33,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 78 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:20:33,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779658602] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:33,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:20:33,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-22 21:20:33,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761238166] [2021-10-22 21:20:33,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-22 21:20:33,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:20:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-22 21:20:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-10-22 21:20:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:33,487 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:20:33,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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 21:20:33,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:33,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:33,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:33,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:20:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:20:33,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:20:33,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-22 21:20:33,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-22 21:20:33,893 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:20:33,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:20:33,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1075046494, now seen corresponding path program 10 times [2021-10-22 21:20:33,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:20:33,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270429436] [2021-10-22 21:20:33,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:20:33,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:20:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:20:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:20:34,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:20:34,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270429436] [2021-10-22 21:20:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270429436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:20:34,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230637761] [2021-10-22 21:20:34,011 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 21:20:34,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:20:34,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:20:34,012 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:20:34,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-22 21:20:34,108 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 21:20:34,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:20:34,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-22 21:20:34,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:20:34,804 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 21:20:34,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-10-22 21:21:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:21:31,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230637761] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:21:31,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:21:31,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 30 [2021-10-22 21:21:31,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081060706] [2021-10-22 21:21:31,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-22 21:21:31,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:21:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-22 21:21:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=855, Unknown=0, NotChecked=0, Total=930 [2021-10-22 21:21:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:21:31,124 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:21:31,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 30 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:21:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:21:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:21:31,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-22 21:21:31,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-22 21:21:31,475 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:21:31,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:21:31,476 INFO L82 PathProgramCache]: Analyzing trace with hash 115585907, now seen corresponding path program 11 times [2021-10-22 21:21:31,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:21:31,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007337253] [2021-10-22 21:21:31,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:21:31,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:21:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:21:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 106 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:21:31,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:21:31,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007337253] [2021-10-22 21:21:31,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007337253] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:21:31,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841082033] [2021-10-22 21:21:31,699 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 21:21:31,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:21:31,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:21:31,700 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:21:31,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-22 21:21:31,825 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-10-22 21:21:31,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:21:31,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-22 21:21:31,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:21:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 120 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:21:31,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841082033] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:21:31,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:21:31,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-22 21:21:31,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159650832] [2021-10-22 21:21:31,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-22 21:21:31,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:21:31,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-22 21:21:31,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2021-10-22 21:21:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:21:31,920 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:21:31,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 22 states have internal predecessors, (31), 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 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:31,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:21:31,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:21:31,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:21:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:21:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:21:32,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-22 21:21:32,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-22 21:21:32,381 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:21:32,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:21:32,381 INFO L82 PathProgramCache]: Analyzing trace with hash 225550616, now seen corresponding path program 12 times [2021-10-22 21:21:32,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:21:32,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123865931] [2021-10-22 21:21:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:21:32,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:21:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:21:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:21:32,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:21:32,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123865931] [2021-10-22 21:21:32,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123865931] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:21:32,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872417620] [2021-10-22 21:21:32,558 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 21:21:32,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:21:32,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:21:32,559 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:21:32,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-22 21:21:32,688 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-10-22 21:21:32,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:21:32,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-22 21:21:32,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:21:33,947 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 21:21:33,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 67 treesize of output 889 [2021-10-22 21:27:11,101 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:27:11,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872417620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:27:11,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:27:11,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22] total 37 [2021-10-22 21:27:11,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577721554] [2021-10-22 21:27:11,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-22 21:27:11,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:27:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-22 21:27:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1313, Unknown=0, NotChecked=0, Total=1406 [2021-10-22 21:27:11,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:27:11,103 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:27:11,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.368421052631579) internal successors, (52), 37 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 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:27:11,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:27:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:27:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:27:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:27:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:27:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:27:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:27:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:27:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:11,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-22 21:27:11,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-22 21:27:11,512 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:27:11,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:27:11,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1801130903, now seen corresponding path program 13 times [2021-10-22 21:27:11,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:27:11,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17676002] [2021-10-22 21:27:11,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:27:11,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:27:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:27:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 154 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:27:11,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:27:11,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17676002] [2021-10-22 21:27:11,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17676002] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:27:11,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190610680] [2021-10-22 21:27:11,807 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 21:27:11,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:27:11,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:27:11,808 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:27:11,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-22 21:27:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:27:11,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-22 21:27:11,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:27:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 171 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:27:12,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190610680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:27:12,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:27:12,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-22 21:27:12,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552721460] [2021-10-22 21:27:12,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-22 21:27:12,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:27:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-22 21:27:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2021-10-22 21:27:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:27:12,066 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:27:12,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:12,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:27:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:27:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-22 21:27:12,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-22 21:27:12,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:27:12,583 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:27:12,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:27:12,583 INFO L82 PathProgramCache]: Analyzing trace with hash 936871650, now seen corresponding path program 14 times [2021-10-22 21:27:12,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:27:12,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006172951] [2021-10-22 21:27:12,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:27:12,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:27:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:27:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 191 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 21:27:12,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:27:12,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006172951] [2021-10-22 21:27:12,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006172951] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:27:12,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26557829] [2021-10-22 21:27:12,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 21:27:12,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:27:12,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:27:12,827 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:27:12,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-22 21:27:12,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 21:27:12,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:27:12,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-22 21:27:12,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:27:14,974 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 21:27:14,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 35 new quantified variables, introduced 153 case distinctions, treesize of input 79 treesize of output 1282 [2021-10-22 21:33:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:33:57,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26557829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:33:57,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:33:57,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 26] total 44 [2021-10-22 21:33:57,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486153244] [2021-10-22 21:33:57,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-22 21:33:57,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:33:57,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-22 21:33:57,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1869, Unknown=0, NotChecked=0, Total=1980 [2021-10-22 21:33:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:33:57,495 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:33:57,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 44 states have internal predecessors, (60), 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 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:33:57,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:33:57,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-10-22 21:33:57,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:33:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:33:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:33:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:33:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:33:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:33:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-22 21:33:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-22 21:33:57,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-22 21:33:57,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-22 21:33:57,957 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-22 21:33:57,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 21:33:57,958 INFO L82 PathProgramCache]: Analyzing trace with hash 316850611, now seen corresponding path program 15 times [2021-10-22 21:33:57,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 21:33:57,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958067970] [2021-10-22 21:33:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 21:33:57,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 21:33:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 21:33:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 211 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:33:58,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 21:33:58,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958067970] [2021-10-22 21:33:58,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958067970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:33:58,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733367802] [2021-10-22 21:33:58,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 21:33:58,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 21:33:58,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 21:33:58,274 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 21:33:58,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-22 21:33:58,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-10-22 21:33:58,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 21:33:58,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-22 21:33:58,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 21:33:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 231 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 21:33:58,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733367802] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 21:33:58,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 21:33:58,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 30 [2021-10-22 21:33:58,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485725683] [2021-10-22 21:33:58,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-22 21:33:58,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 21:33:58,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-22 21:33:58,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=639, Unknown=0, NotChecked=0, Total=930 [2021-10-22 21:33:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 21:33:58,573 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 21:33:58,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 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 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-22 21:33:58,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2021-10-22 21:33:58,798 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 21:33:58,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-22 21:33:58,825 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 21:33:58,842 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 21:33:59,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-22 21:33:59,000 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. [2021-10-22 21:33:59,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 21:33:59,002 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 21:33:59,002 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 21:33:59,006 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 21:33:59,006 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 21:33:59,007 INFO L202 PluginConnector]: Adding new model unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:33:59 BasicIcfg [2021-10-22 21:33:59,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 21:33:59,008 INFO L168 Benchmark]: Toolchain (without parser) took 815058.09 ms. Allocated memory was 198.2 MB in the beginning and 750.8 MB in the end (delta: 552.6 MB). Free memory was 159.0 MB in the beginning and 590.4 MB in the end (delta: -431.5 MB). Peak memory consumption was 122.2 MB. Max. memory is 8.0 GB. [2021-10-22 21:33:59,008 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 198.2 MB. Free memory is still 160.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 21:33:59,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.32 ms. Allocated memory is still 198.2 MB. Free memory was 158.9 MB in the beginning and 157.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 21:33:59,008 INFO L168 Benchmark]: Boogie Preprocessor took 12.21 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 156.5 MB in the end (delta: 905.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 21:33:59,008 INFO L168 Benchmark]: RCFGBuilder took 249.60 ms. Allocated memory is still 198.2 MB. Free memory was 156.4 MB in the beginning and 141.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-22 21:33:59,009 INFO L168 Benchmark]: TraceAbstraction took 814776.07 ms. Allocated memory was 198.2 MB in the beginning and 750.8 MB in the end (delta: 552.6 MB). Free memory was 140.7 MB in the beginning and 590.4 MB in the end (delta: -449.8 MB). Peak memory consumption was 103.3 MB. Max. memory is 8.0 GB. [2021-10-22 21:33:59,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 198.2 MB. Free memory is still 160.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 16.32 ms. Allocated memory is still 198.2 MB. Free memory was 158.9 MB in the beginning and 157.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.21 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 156.5 MB in the end (delta: 905.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 249.60 ms. Allocated memory is still 198.2 MB. Free memory was 156.4 MB in the beginning and 141.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 814776.07 ms. Allocated memory was 198.2 MB in the beginning and 750.8 MB in the end (delta: 552.6 MB). Free memory was 140.7 MB in the beginning and 590.4 MB in the end (delta: -449.8 MB). Peak memory consumption was 103.3 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: 1301, positive: 853, positive conditional: 819, positive unconditional: 34, negative: 448, negative conditional: 448, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 853, positive: 853, positive conditional: 0, positive unconditional: 853, 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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 853, positive: 818, positive conditional: 0, positive unconditional: 818, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 35, unknown conditional: 0, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 448 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 9, Number of persistent set computation: 9, Number of trivial persistent sets: 9, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1301, positive: 853, positive conditional: 819, positive unconditional: 34, negative: 448, negative conditional: 448, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 853, positive: 853, positive conditional: 0, positive unconditional: 853, 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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 853, positive: 818, positive conditional: 0, positive unconditional: 818, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 35, unknown conditional: 0, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 448 - 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: 55]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 46 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 814662.7ms, OverallIterations: 17, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.5ms, PartialOrderReductionTime: 2210.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 221, 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: 75.9ms SsaConstructionTime, 310.5ms SatisfiabilityAnalysisTime, 807569.1ms InterpolantComputationTime, 683 NumberOfCodeBlocks, 683 NumberOfCodeBlocksAsserted, 76 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 5689 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1375 ConjunctsInSsa, 340 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 1251/2473 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