/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 11:07:13,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 11:07:13,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 11:07:13,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-22 11:07:13,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-22 11:07:13,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-22 11:07:13,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-22 11:07:13,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-22 11:07:13,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-22 11:07:13,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-22 11:07:13,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-22 11:07:13,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-22 11:07:13,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 11:07:13,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 11:07:13,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 11:07:13,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 11:07:13,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 11:07:13,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 11:07:13,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 11:07:13,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 11:07:13,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 11:07:13,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 11:07:13,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 11:07:13,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 11:07:13,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-22 11:07:13,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-22 11:07:13,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-22 11:07:13,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-22 11:07:13,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-22 11:07:13,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-22 11:07:13,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-22 11:07:13,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-22 11:07:13,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-22 11:07:13,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-22 11:07:13,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-22 11:07:13,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-22 11:07:13,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-22 11:07:13,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-22 11:07:13,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 11:07:13,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 11:07:13,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 11:07:13,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe.epf [2021-10-22 11:07:13,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 11:07:13,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 11:07:13,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 11:07:13,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 11:07:13,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 11:07:13,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 11:07:13,854 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 11:07:13,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 11:07:13,855 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 11:07:13,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 11:07:13,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 11:07:13,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 11:07:13,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 11:07:13,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 11:07:13,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:07:13,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 11:07:13,858 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 11:07:13,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 11:07:13,859 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 11:07:14,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 11:07:14,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 11:07:14,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 11:07:14,052 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 11:07:14,053 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 11:07:14,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl [2021-10-22 11:07:14,053 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl' [2021-10-22 11:07:14,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 11:07:14,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 11:07:14,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 11:07:14,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 11:07:14,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 11:07:14,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 11:07:14,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 11:07:14,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 11:07:14,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 11:07:14,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 11:07:14,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 11:07:14,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 11:07:14,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 11:07:14,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/1) ... [2021-10-22 11:07:14,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 11:07:14,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:14,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-22 11:07:14,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-22 11:07:14,179 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 11:07:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 11:07:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 11:07:14,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 11:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 11:07:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 11:07:14,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 11:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 11:07:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 11:07:14,180 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 11:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 11:07:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 11:07:14,181 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-22 11:07:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-22 11:07:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-22 11:07:14,182 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 11:07:14,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 11:07:14,342 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 11:07:14,344 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:07:14 BoogieIcfgContainer [2021-10-22 11:07:14,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 11:07:14,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 11:07:14,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 11:07:14,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 11:07:14,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 11:07:14" (1/2) ... [2021-10-22 11:07:14,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cd8e3a and model type mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:07:14, skipping insertion in model container [2021-10-22 11:07:14,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:07:14" (2/2) ... [2021-10-22 11:07:14,382 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-4.wvr.bpl [2021-10-22 11:07:14,386 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 11:07:14,386 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 11:07:14,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 11:07:14,386 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 11:07:14,427 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-22 11:07:14,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 11:07:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:14,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 11:07:14,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-22 11:07:14,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 11:07:14,483 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 11:07:14,484 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-22 11:07:14,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:14,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:14,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1794839971, now seen corresponding path program 1 times [2021-10-22 11:07:14,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:14,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215788301] [2021-10-22 11:07:14,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:14,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-22 11:07:14,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:14,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215788301] [2021-10-22 11:07:14,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215788301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 11:07:14,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 11:07:14,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 11:07:14,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230821675] [2021-10-22 11:07:14,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 11:07:14,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:14,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 11:07:14,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-22 11:07:14,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:14,790 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:14,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:14,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:14,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 11:07:14,812 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:14,812 INFO L82 PathProgramCache]: Analyzing trace with hash -431209633, now seen corresponding path program 2 times [2021-10-22 11:07:14,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:14,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341170445] [2021-10-22 11:07:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:14,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:15,002 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 11:07:15,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:15,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341170445] [2021-10-22 11:07:15,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341170445] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:15,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055305261] [2021-10-22 11:07:15,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:07:15,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:15,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:15,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:15,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 11:07:15,070 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:07:15,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:15,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-22 11:07:15,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-22 11:07:15,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055305261] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:15,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:15,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-22 11:07:15,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190540991] [2021-10-22 11:07:15,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-22 11:07:15,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:15,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-22 11:07:15,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-22 11:07:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:15,283 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:15,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:15,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:15,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:15,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:15,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-22 11:07:15,722 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:15,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:15,723 INFO L82 PathProgramCache]: Analyzing trace with hash -772324885, now seen corresponding path program 3 times [2021-10-22 11:07:15,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:15,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080784984] [2021-10-22 11:07:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:15,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:15,821 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-22 11:07:15,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:15,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080784984] [2021-10-22 11:07:15,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080784984] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:15,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535010216] [2021-10-22 11:07:15,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:07:15,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:15,823 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:15,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 11:07:15,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-22 11:07:15,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:15,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-22 11:07:15,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:16,091 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 11:07:16,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535010216] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:16,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:16,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 11 [2021-10-22 11:07:16,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300393104] [2021-10-22 11:07:16,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 11:07:16,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:16,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 11:07:16,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-22 11:07:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:16,093 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:16,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:16,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:16,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-22 11:07:16,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:16,492 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:16,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:16,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1250819535, now seen corresponding path program 4 times [2021-10-22 11:07:16,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:16,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845518921] [2021-10-22 11:07:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:16,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:07:16,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:16,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845518921] [2021-10-22 11:07:16,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845518921] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:16,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094022826] [2021-10-22 11:07:16,620 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:07:16,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:16,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:16,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 11:07:16,694 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:07:16,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:16,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-22 11:07:16,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 11:07:16,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094022826] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:16,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:16,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-22 11:07:16,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343949106] [2021-10-22 11:07:16,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-22 11:07:16,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-22 11:07:16,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-22 11:07:16,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:16,924 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:16,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:16,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:16,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:16,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:16,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:16,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:17,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:17,168 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:17,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:17,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1962601103, now seen corresponding path program 5 times [2021-10-22 11:07:17,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:17,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104384363] [2021-10-22 11:07:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:17,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-22 11:07:17,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:17,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104384363] [2021-10-22 11:07:17,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104384363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:17,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409277733] [2021-10-22 11:07:17,274 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:07:17,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:17,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:17,274 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:17,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 11:07:17,401 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-22 11:07:17,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:17,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-22 11:07:17,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-22 11:07:17,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409277733] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:17,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:17,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2021-10-22 11:07:17,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850599396] [2021-10-22 11:07:17,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-22 11:07:17,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:17,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-22 11:07:17,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-10-22 11:07:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:17,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:17,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:17,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:17,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:17,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:17,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:17,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:07:17,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:18,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:18,160 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:18,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:18,160 INFO L82 PathProgramCache]: Analyzing trace with hash -84090503, now seen corresponding path program 6 times [2021-10-22 11:07:18,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:18,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732198484] [2021-10-22 11:07:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:18,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-22 11:07:18,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:18,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732198484] [2021-10-22 11:07:18,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732198484] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:18,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564753321] [2021-10-22 11:07:18,252 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 11:07:18,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:18,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:18,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:18,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 11:07:18,370 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-22 11:07:18,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:18,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-22 11:07:18,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-22 11:07:18,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564753321] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:18,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:18,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2021-10-22 11:07:18,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648438132] [2021-10-22 11:07:18,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-22 11:07:18,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:18,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-22 11:07:18,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-10-22 11:07:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:18,642 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:18,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 16 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:18,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:18,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-22 11:07:18,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:18,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:18,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-22 11:07:18,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:19,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:19,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:19,214 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:19,214 INFO L82 PathProgramCache]: Analyzing trace with hash 646317315, now seen corresponding path program 7 times [2021-10-22 11:07:19,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:19,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324828572] [2021-10-22 11:07:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:19,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 25 proven. 62 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-22 11:07:19,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:19,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324828572] [2021-10-22 11:07:19,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324828572] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:19,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207537356] [2021-10-22 11:07:19,442 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 11:07:19,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:19,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:19,443 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:19,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 11:07:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:19,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 11:07:19,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:20,018 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 45 proven. 49 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-22 11:07:20,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207537356] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:20,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:20,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2021-10-22 11:07:20,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495699874] [2021-10-22 11:07:20,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-22 11:07:20,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:20,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-22 11:07:20,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2021-10-22 11:07:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:20,020 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:20,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.2333333333333334) internal successors, (97), 29 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:20,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:07:21,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:21,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:21,211 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:21,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:21,211 INFO L82 PathProgramCache]: Analyzing trace with hash 75019599, now seen corresponding path program 8 times [2021-10-22 11:07:21,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:21,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399813540] [2021-10-22 11:07:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:21,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 36 proven. 86 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-10-22 11:07:21,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:21,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399813540] [2021-10-22 11:07:21,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399813540] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:21,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787668500] [2021-10-22 11:07:21,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:07:21,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:21,390 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:21,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 11:07:21,568 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:07:21,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:21,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-22 11:07:21,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 75 proven. 49 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-10-22 11:07:22,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787668500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:22,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:22,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2021-10-22 11:07:22,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370870875] [2021-10-22 11:07:22,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-22 11:07:22,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-22 11:07:22,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1022, Unknown=0, NotChecked=0, Total=1190 [2021-10-22 11:07:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:22,127 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:22,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.942857142857143) internal successors, (103), 34 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:22,127 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:22,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:22,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:22,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:22,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-10-22 11:07:22,128 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-22 11:07:23,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:23,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-22 11:07:23,436 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:23,436 INFO L82 PathProgramCache]: Analyzing trace with hash -606425511, now seen corresponding path program 9 times [2021-10-22 11:07:23,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:23,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992209485] [2021-10-22 11:07:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:23,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 109 proven. 119 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-22 11:07:23,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:23,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992209485] [2021-10-22 11:07:23,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992209485] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:23,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187084724] [2021-10-22 11:07:23,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:07:23,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:23,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:23,865 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:07:23,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 11:07:24,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-22 11:07:24,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:24,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-22 11:07:24,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 66 proven. 49 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-10-22 11:07:24,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187084724] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:24,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:24,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 16] total 43 [2021-10-22 11:07:24,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260524415] [2021-10-22 11:07:24,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-22 11:07:24,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:24,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-22 11:07:24,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1669, Unknown=0, NotChecked=0, Total=1892 [2021-10-22 11:07:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:24,853 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:24,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.772727272727273) internal successors, (122), 43 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-10-22 11:07:24,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-22 11:07:28,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:28,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:28,202 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:28,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:28,202 INFO L82 PathProgramCache]: Analyzing trace with hash 720689135, now seen corresponding path program 10 times [2021-10-22 11:07:28,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:28,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773893532] [2021-10-22 11:07:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:28,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:28,402 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 216 proven. 445 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-10-22 11:07:28,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:28,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773893532] [2021-10-22 11:07:28,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773893532] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:28,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088682373] [2021-10-22 11:07:28,402 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:07:28,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:28,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:28,403 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 11:07:28,447 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 11:07:28,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:07:28,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:28,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-22 11:07:28,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 415 proven. 121 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-10-22 11:07:29,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088682373] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:29,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:29,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 26] total 40 [2021-10-22 11:07:29,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251225809] [2021-10-22 11:07:29,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-22 11:07:29,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:29,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-22 11:07:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1426, Unknown=0, NotChecked=0, Total=1640 [2021-10-22 11:07:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:29,634 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:29,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.5853658536585367) internal successors, (147), 40 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-10-22 11:07:29,634 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-22 11:07:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:30,865 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 11:07:31,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-22 11:07:31,058 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:31,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:31,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1674912563, now seen corresponding path program 11 times [2021-10-22 11:07:31,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:31,059 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416065735] [2021-10-22 11:07:31,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:31,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 957 backedges. 513 proven. 395 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-22 11:07:32,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:32,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416065735] [2021-10-22 11:07:32,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416065735] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:32,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501464961] [2021-10-22 11:07:32,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:07:32,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:32,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:32,189 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 11:07:32,190 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 11:07:32,538 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-10-22 11:07:32,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:32,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-22 11:07:32,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 957 backedges. 492 proven. 268 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-10-22 11:07:34,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501464961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:34,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:34,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 32] total 85 [2021-10-22 11:07:34,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122815826] [2021-10-22 11:07:34,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2021-10-22 11:07:34,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-10-22 11:07:34,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=944, Invalid=6366, Unknown=0, NotChecked=0, Total=7310 [2021-10-22 11:07:34,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:34,346 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:34,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 2.5930232558139537) internal successors, (223), 85 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:34,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:38,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:38,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:38,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:38,480 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,SelfDestructingSolverStorable10 [2021-10-22 11:07:38,481 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:38,481 INFO L82 PathProgramCache]: Analyzing trace with hash -990991457, now seen corresponding path program 12 times [2021-10-22 11:07:38,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:38,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578280230] [2021-10-22 11:07:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:38,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 153 proven. 524 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2021-10-22 11:07:38,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:38,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578280230] [2021-10-22 11:07:38,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578280230] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:38,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30974634] [2021-10-22 11:07:38,710 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 11:07:38,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:38,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:38,711 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 11:07:38,712 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 11:07:39,190 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-10-22 11:07:39,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:39,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-22 11:07:39,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 266 proven. 153 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2021-10-22 11:07:40,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30974634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:40,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:40,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 28] total 46 [2021-10-22 11:07:40,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894766372] [2021-10-22 11:07:40,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-22 11:07:40,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:40,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-22 11:07:40,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1888, Unknown=0, NotChecked=0, Total=2162 [2021-10-22 11:07:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:40,356 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:40,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.382978723404255) internal successors, (159), 46 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:40,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:41,928 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 11:07:42,112 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,SelfDestructingSolverStorable11 [2021-10-22 11:07:42,112 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:42,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:42,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1335949899, now seen corresponding path program 13 times [2021-10-22 11:07:42,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:42,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063370796] [2021-10-22 11:07:42,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:42,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:42,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 95 proven. 662 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2021-10-22 11:07:42,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:42,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063370796] [2021-10-22 11:07:42,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063370796] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:42,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791368946] [2021-10-22 11:07:42,462 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 11:07:42,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:42,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:42,463 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 11:07:42,515 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 11:07:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:42,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-22 11:07:42,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1530 backedges. 95 proven. 662 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2021-10-22 11:07:43,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791368946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:43,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:43,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 22 [2021-10-22 11:07:43,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881400199] [2021-10-22 11:07:43,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-22 11:07:43,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:43,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-22 11:07:43,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2021-10-22 11:07:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:43,429 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:43,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.909090909090909) internal successors, (108), 22 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:43,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:43,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:07:43,929 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 11:07:44,112 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,SelfDestructingSolverStorable12 [2021-10-22 11:07:44,112 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:44,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1986246457, now seen corresponding path program 14 times [2021-10-22 11:07:44,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:44,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727859474] [2021-10-22 11:07:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:44,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 21 proven. 816 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2021-10-22 11:07:44,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:44,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727859474] [2021-10-22 11:07:44,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727859474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:44,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448874408] [2021-10-22 11:07:44,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 11:07:44,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:44,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:44,424 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 11:07:44,425 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 11:07:45,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 11:07:45,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:45,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-22 11:07:45,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1606 backedges. 21 proven. 816 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2021-10-22 11:07:45,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448874408] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:45,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:45,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 24 [2021-10-22 11:07:45,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680431964] [2021-10-22 11:07:45,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-22 11:07:45,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-22 11:07:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2021-10-22 11:07:45,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:45,444 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:45,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:07:45,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:07:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-22 11:07:46,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-22 11:07:46,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:46,263 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:46,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1609303741, now seen corresponding path program 15 times [2021-10-22 11:07:46,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:46,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363753309] [2021-10-22 11:07:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:46,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 60 proven. 1621 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-22 11:07:46,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:46,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363753309] [2021-10-22 11:07:46,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363753309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:46,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445742627] [2021-10-22 11:07:46,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 11:07:46,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:46,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:46,667 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 11:07:46,695 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 11:07:47,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-10-22 11:07:47,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:47,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-22 11:07:47,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 523 proven. 365 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2021-10-22 11:07:49,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445742627] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:49,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:49,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 42] total 66 [2021-10-22 11:07:49,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688665555] [2021-10-22 11:07:49,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-10-22 11:07:49,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:49,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-10-22 11:07:49,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=3887, Unknown=0, NotChecked=0, Total=4422 [2021-10-22 11:07:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:49,436 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:49,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 4.119402985074627) internal successors, (276), 66 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-22 11:07:49,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:53,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:07:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-22 11:07:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-10-22 11:07:53,034 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 11:07:53,231 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,SelfDestructingSolverStorable14 [2021-10-22 11:07:53,231 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:07:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:07:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash 313738059, now seen corresponding path program 16 times [2021-10-22 11:07:53,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:07:53,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806523694] [2021-10-22 11:07:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:07:53,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:07:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:07:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1987 backedges. 1050 proven. 535 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2021-10-22 11:07:54,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:07:54,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806523694] [2021-10-22 11:07:54,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806523694] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:54,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343506840] [2021-10-22 11:07:54,965 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 11:07:54,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:07:54,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:07:54,966 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 11:07:54,966 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 11:07:55,703 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 11:07:55,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:07:55,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-22 11:07:55,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:07:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1987 backedges. 527 proven. 488 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2021-10-22 11:07:58,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343506840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:07:58,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:07:58,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 46] total 115 [2021-10-22 11:07:58,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894023914] [2021-10-22 11:07:58,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2021-10-22 11:07:58,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:07:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2021-10-22 11:07:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1434, Invalid=11906, Unknown=0, NotChecked=0, Total=13340 [2021-10-22 11:07:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:07:58,388 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:07:58,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.2672413793103448) internal successors, (263), 115 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-10-22 11:07:58,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:08:06,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:08:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 11:08:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:08:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-10-22 11:08:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2021-10-22 11:08:06,026 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 11:08:06,208 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,SelfDestructingSolverStorable15 [2021-10-22 11:08:06,209 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-22 11:08:06,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 11:08:06,209 INFO L82 PathProgramCache]: Analyzing trace with hash -564665931, now seen corresponding path program 17 times [2021-10-22 11:08:06,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 11:08:06,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500705339] [2021-10-22 11:08:06,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 11:08:06,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 11:08:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 11:08:06,659 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 1756 proven. 1127 refuted. 0 times theorem prover too weak. 3175 trivial. 0 not checked. [2021-10-22 11:08:06,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 11:08:06,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500705339] [2021-10-22 11:08:06,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500705339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:08:06,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450835372] [2021-10-22 11:08:06,660 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 11:08:06,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 11:08:06,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 11:08:06,661 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 11:08:06,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-22 11:08:07,568 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2021-10-22 11:08:07,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 11:08:07,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 100 conjunts are in the unsatisfiable core [2021-10-22 11:08:07,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 11:08:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 4367 proven. 641 refuted. 0 times theorem prover too weak. 1050 trivial. 0 not checked. [2021-10-22 11:08:10,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450835372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 11:08:10,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 11:08:10,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 45] total 70 [2021-10-22 11:08:10,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316219244] [2021-10-22 11:08:10,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-10-22 11:08:10,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 11:08:10,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-10-22 11:08:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1669, Invalid=3161, Unknown=0, NotChecked=0, Total=4830 [2021-10-22 11:08:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 11:08:10,199 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 11:08:10,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 4.257142857142857) internal successors, (298), 70 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 11:08:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 11:08:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 11:08:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 11:08:10,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 132 states. [2021-10-22 11:08:10,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.