/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 10:21:46,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 10:21:46,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 10:21:46,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-25 10:21:46,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-25 10:21:46,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-25 10:21:46,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-25 10:21:46,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-25 10:21:46,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-25 10:21:46,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-25 10:21:46,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-25 10:21:46,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-25 10:21:46,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 10:21:46,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 10:21:46,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 10:21:46,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 10:21:46,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 10:21:46,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 10:21:46,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 10:21:46,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 10:21:46,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 10:21:46,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 10:21:46,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 10:21:46,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 10:21:46,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-25 10:21:46,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-25 10:21:46,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-25 10:21:46,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-25 10:21:46,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-25 10:21:46,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-25 10:21:46,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-25 10:21:46,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-25 10:21:46,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-25 10:21:46,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-25 10:21:46,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-25 10:21:46,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-25 10:21:46,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-25 10:21:46,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-25 10:21:46,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 10:21:46,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 10:21:46,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 10:21:46,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf [2021-10-25 10:21:46,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 10:21:46,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 10:21:46,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 10:21:46,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 10:21:46,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 10:21:46,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 10:21:46,195 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 10:21:46,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 10:21:46,195 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 10:21:46,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 10:21:46,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 10:21:46,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 10:21:46,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 10:21:46,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 10:21:46,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 10:21:46,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 10:21:46,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 10:21:46,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 10:21:46,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 10:21:46,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 10:21:46,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 10:21:46,199 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 10:21:46,199 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 10:21:46,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 10:21:46,199 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-25 10:21:46,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 10:21:46,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 10:21:46,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 10:21:46,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 10:21:46,438 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 10:21:46,440 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 10:21:46,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2021-10-25 10:21:46,440 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2021-10-25 10:21:46,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 10:21:46,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 10:21:46,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 10:21:46,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 10:21:46,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 10:21:46,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 10:21:46,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 10:21:46,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 10:21:46,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 10:21:46,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 10:21:46,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 10:21:46,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 10:21:46,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 10:21:46,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/1) ... [2021-10-25 10:21:46,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 10:21:46,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:46,542 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) [2021-10-25 10:21:46,544 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 [2021-10-25 10:21:46,571 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 10:21:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 10:21:46,571 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 10:21:46,571 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 10:21:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 10:21:46,571 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 10:21:46,572 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 10:21:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 10:21:46,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 10:21:46,572 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-25 10:21:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-25 10:21:46,572 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-25 10:21:46,573 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 10:21:46,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 10:21:46,723 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-25 10:21:46,725 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:46 BoogieIcfgContainer [2021-10-25 10:21:46,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 10:21:46,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 10:21:46,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 10:21:46,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 10:21:46,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 10:21:46" (1/2) ... [2021-10-25 10:21:46,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f2ce6c and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:21:46, skipping insertion in model container [2021-10-25 10:21:46,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:46" (2/2) ... [2021-10-25 10:21:46,731 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2021-10-25 10:21:46,735 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 10:21:46,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 10:21:46,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 10:21:46,736 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 10:21:46,791 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-25 10:21:46,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 10:21:46,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:46,844 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) [2021-10-25 10:21:46,845 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 [2021-10-25 10:21:46,876 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 10:21:46,881 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 [2021-10-25 10:21:46,881 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-25 10:21:46,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:46,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:46,970 INFO L82 PathProgramCache]: Analyzing trace with hash -624595504, now seen corresponding path program 1 times [2021-10-25 10:21:46,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:46,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065909369] [2021-10-25 10:21:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:46,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:47,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:47,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065909369] [2021-10-25 10:21:47,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065909369] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 10:21:47,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 10:21:47,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-25 10:21:47,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990626858] [2021-10-25 10:21:47,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 10:21:47,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:47,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 10:21:47,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-25 10:21:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:47,131 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:47,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 10:21:47,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:47,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 10:21:47,186 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:47,187 INFO L82 PathProgramCache]: Analyzing trace with hash -719597906, now seen corresponding path program 1 times [2021-10-25 10:21:47,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:47,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022729701] [2021-10-25 10:21:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:47,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:47,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:47,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022729701] [2021-10-25 10:21:47,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022729701] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 10:21:47,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 10:21:47,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-25 10:21:47,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710081512] [2021-10-25 10:21:47,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-25 10:21:47,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-25 10:21:47,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-25 10:21:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:47,243 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:47,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 10:21:47,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:47,244 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:47,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 10:21:47,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:47,278 INFO L82 PathProgramCache]: Analyzing trace with hash -171947494, now seen corresponding path program 1 times [2021-10-25 10:21:47,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:47,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909162278] [2021-10-25 10:21:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:47,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:47,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:47,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909162278] [2021-10-25 10:21:47,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909162278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:47,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654723330] [2021-10-25 10:21:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:47,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:47,379 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) [2021-10-25 10:21:47,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 10:21:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:47,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-25 10:21:47,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:47,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654723330] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:47,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:47,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-10-25 10:21:47,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895445758] [2021-10-25 10:21:47,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 10:21:47,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:47,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 10:21:47,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-25 10:21:47,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:47,742 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:47,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2021-10-25 10:21:47,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:47,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:47,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:47,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:47,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:47,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:48,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-25 10:21:48,080 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:48,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:48,081 INFO L82 PathProgramCache]: Analyzing trace with hash 706677752, now seen corresponding path program 2 times [2021-10-25 10:21:48,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:48,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113204884] [2021-10-25 10:21:48,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:48,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:48,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:48,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:48,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113204884] [2021-10-25 10:21:48,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113204884] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:48,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515988995] [2021-10-25 10:21:48,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 10:21:48,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:48,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:48,676 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) [2021-10-25 10:21:48,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 10:21:48,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 10:21:48,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:21:48,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-25 10:21:48,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:49,585 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-25 10:21:49,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 54 [2021-10-25 10:21:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:50,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515988995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:50,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:50,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 18 [2021-10-25 10:21:50,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326818720] [2021-10-25 10:21:50,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-25 10:21:50,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:50,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-25 10:21:50,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-10-25 10:21:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:50,054 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:50,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 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) [2021-10-25 10:21:50,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:50,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:50,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:50,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:50,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:50,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:50,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:50,892 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:50,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1043018154, now seen corresponding path program 3 times [2021-10-25 10:21:50,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:50,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731126062] [2021-10-25 10:21:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:50,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:51,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:51,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731126062] [2021-10-25 10:21:51,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731126062] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:51,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888092890] [2021-10-25 10:21:51,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 10:21:51,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:51,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:51,023 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) [2021-10-25 10:21:51,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 10:21:51,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-25 10:21:51,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:21:51,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-25 10:21:51,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:51,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888092890] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:51,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:51,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-10-25 10:21:51,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291219167] [2021-10-25 10:21:51,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-25 10:21:51,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:51,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-25 10:21:51,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-10-25 10:21:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:51,361 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:51,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 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) [2021-10-25 10:21:51,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:51,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:51,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:51,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:51,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:51,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:51,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:51,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:51,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:51,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:51,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1547046886, now seen corresponding path program 4 times [2021-10-25 10:21:51,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:51,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155184893] [2021-10-25 10:21:51,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:51,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:51,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:51,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155184893] [2021-10-25 10:21:51,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155184893] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:51,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649352343] [2021-10-25 10:21:51,873 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 10:21:51,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:51,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:51,879 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) [2021-10-25 10:21:51,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 10:21:52,018 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 10:21:52,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:21:52,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-25 10:21:52,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:52,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649352343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:52,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:52,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-10-25 10:21:52,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638362010] [2021-10-25 10:21:52,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-25 10:21:52,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:52,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-25 10:21:52,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-25 10:21:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:52,221 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:52,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 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) [2021-10-25 10:21:52,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:52,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:52,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:52,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:52,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:52,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:52,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:52,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:52,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:52,574 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:52,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:52,575 INFO L82 PathProgramCache]: Analyzing trace with hash -986713096, now seen corresponding path program 5 times [2021-10-25 10:21:52,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:52,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698528550] [2021-10-25 10:21:52,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:52,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:53,117 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:53,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:53,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698528550] [2021-10-25 10:21:53,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698528550] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:53,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016401877] [2021-10-25 10:21:53,118 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 10:21:53,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:53,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:53,120 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) [2021-10-25 10:21:53,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 10:21:53,264 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-25 10:21:53,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:21:53,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-25 10:21:53,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:54,525 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-10-25 10:21:54,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 106 treesize of output 68 [2021-10-25 10:21:54,577 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:54,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016401877] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:54,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:54,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-10-25 10:21:54,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633627588] [2021-10-25 10:21:54,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-25 10:21:54,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:54,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-25 10:21:54,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2021-10-25 10:21:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:54,580 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:54,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 27 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) [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:54,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:21:55,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:56,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:56,151 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:56,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:56,152 INFO L82 PathProgramCache]: Analyzing trace with hash 623147094, now seen corresponding path program 6 times [2021-10-25 10:21:56,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:56,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716831559] [2021-10-25 10:21:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:56,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:56,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:56,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716831559] [2021-10-25 10:21:56,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716831559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:56,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021417378] [2021-10-25 10:21:56,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-25 10:21:56,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:56,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:56,288 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) [2021-10-25 10:21:56,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 10:21:56,490 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-10-25 10:21:56,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:21:56,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-25 10:21:56,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:56,868 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:56,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021417378] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:56,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:56,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-10-25 10:21:56,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326483756] [2021-10-25 10:21:56,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-25 10:21:56,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:56,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-25 10:21:56,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-10-25 10:21:56,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:56,870 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:56,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 24 states have internal predecessors, (61), 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) [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:21:56,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:21:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:21:57,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:57,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:57,454 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash 590649882, now seen corresponding path program 7 times [2021-10-25 10:21:57,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:57,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381147315] [2021-10-25 10:21:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:57,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:57,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:57,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381147315] [2021-10-25 10:21:57,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381147315] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:57,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368634254] [2021-10-25 10:21:57,596 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-25 10:21:57,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:57,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:57,597 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) [2021-10-25 10:21:57,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-25 10:21:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:57,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-25 10:21:57,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:21:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 25 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:21:58,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368634254] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:58,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:21:58,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2021-10-25 10:21:58,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705637613] [2021-10-25 10:21:58,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-25 10:21:58,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:21:58,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-25 10:21:58,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2021-10-25 10:21:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:58,046 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:21:58,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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) [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:21:58,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:21:58,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:21:58,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:21:58,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-25 10:21:58,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-25 10:21:58,424 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:21:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:21:58,424 INFO L82 PathProgramCache]: Analyzing trace with hash -549462024, now seen corresponding path program 8 times [2021-10-25 10:21:58,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:21:58,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483902581] [2021-10-25 10:21:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:21:58,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:21:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:21:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:21:59,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:21:59,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483902581] [2021-10-25 10:21:59,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483902581] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:21:59,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283271605] [2021-10-25 10:21:59,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 10:21:59,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:21:59,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:21:59,572 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) [2021-10-25 10:21:59,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-25 10:21:59,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 10:21:59,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:21:59,870 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-25 10:21:59,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:01,427 INFO L354 Elim1Store]: treesize reduction 86, result has 3.4 percent of original size [2021-10-25 10:22:01,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 54 treesize of output 33 [2021-10-25 10:22:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:01,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283271605] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:01,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:01,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 35 [2021-10-25 10:22:01,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692963867] [2021-10-25 10:22:01,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-25 10:22:01,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:01,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-25 10:22:01,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1063, Unknown=0, NotChecked=0, Total=1190 [2021-10-25 10:22:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:01,491 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:01,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.2) internal successors, (77), 35 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:01,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:04,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-25 10:22:04,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-25 10:22:04,424 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:04,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2000578696, now seen corresponding path program 9 times [2021-10-25 10:22:04,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:04,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845391442] [2021-10-25 10:22:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:04,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:05,605 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 16 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:05,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:05,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845391442] [2021-10-25 10:22:05,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845391442] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:05,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219179075] [2021-10-25 10:22:05,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 10:22:05,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:05,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:05,607 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) [2021-10-25 10:22:05,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-25 10:22:05,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-10-25 10:22:05,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:22:05,989 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-25 10:22:05,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:08,199 INFO L354 Elim1Store]: treesize reduction 224, result has 19.1 percent of original size [2021-10-25 10:22:08,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 79 treesize of output 99 [2021-10-25 10:22:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:08,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219179075] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:08,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:08,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 42 [2021-10-25 10:22:08,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270452053] [2021-10-25 10:22:08,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-25 10:22:08,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-25 10:22:08,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1540, Unknown=0, NotChecked=0, Total=1722 [2021-10-25 10:22:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:08,413 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:08,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.0238095238095237) internal successors, (85), 42 states have internal predecessors, (85), 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) [2021-10-25 10:22:08,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:08,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:08,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:08,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:08,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:08,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:08,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:08,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:08,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:08,419 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:12,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-25 10:22:12,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-25 10:22:12,323 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:12,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:12,323 INFO L82 PathProgramCache]: Analyzing trace with hash -189474730, now seen corresponding path program 10 times [2021-10-25 10:22:12,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:12,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744814060] [2021-10-25 10:22:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:12,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 49 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:12,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:12,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744814060] [2021-10-25 10:22:12,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744814060] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:12,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093826232] [2021-10-25 10:22:12,547 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 10:22:12,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:12,548 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) [2021-10-25 10:22:12,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-25 10:22:13,011 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 10:22:13,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:22:13,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-25 10:22:13,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 64 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:13,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093826232] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:13,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:13,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 40 [2021-10-25 10:22:13,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645845735] [2021-10-25 10:22:13,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-25 10:22:13,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:13,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-25 10:22:13,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1277, Unknown=0, NotChecked=0, Total=1560 [2021-10-25 10:22:13,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:13,704 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:13,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.325) internal successors, (93), 40 states have internal predecessors, (93), 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) [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:13,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:13,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:13,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:14,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-25 10:22:14,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-25 10:22:14,756 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:14,756 INFO L82 PathProgramCache]: Analyzing trace with hash -208340454, now seen corresponding path program 11 times [2021-10-25 10:22:14,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:14,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387222449] [2021-10-25 10:22:14,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:14,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:22:14,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:14,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387222449] [2021-10-25 10:22:14,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387222449] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:14,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588539549] [2021-10-25 10:22:14,988 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 10:22:14,989 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:14,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:14,990 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) [2021-10-25 10:22:14,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-25 10:22:15,521 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-10-25 10:22:15,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:22:15,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-25 10:22:15,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:22:15,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588539549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:15,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:15,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 32 [2021-10-25 10:22:15,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849468629] [2021-10-25 10:22:15,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-25 10:22:15,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:15,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-25 10:22:15,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=730, Unknown=0, NotChecked=0, Total=992 [2021-10-25 10:22:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:15,910 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:15,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 32 states have internal predecessors, (78), 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) [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:15,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:16,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-25 10:22:16,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-25 10:22:16,399 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:16,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:16,400 INFO L82 PathProgramCache]: Analyzing trace with hash -171654152, now seen corresponding path program 12 times [2021-10-25 10:22:16,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:16,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900067341] [2021-10-25 10:22:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:16,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 49 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:18,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:18,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900067341] [2021-10-25 10:22:18,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900067341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:18,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388894867] [2021-10-25 10:22:18,163 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-25 10:22:18,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:18,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:18,168 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) [2021-10-25 10:22:18,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-25 10:22:18,742 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-10-25 10:22:18,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:22:18,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 92 conjunts are in the unsatisfiable core [2021-10-25 10:22:18,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:22,607 INFO L354 Elim1Store]: treesize reduction 134, result has 74.7 percent of original size [2021-10-25 10:22:22,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 21 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 57 case distinctions, treesize of input 101 treesize of output 449 [2021-10-25 10:22:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:42,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388894867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:42,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:42,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 30] total 54 [2021-10-25 10:22:42,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149998402] [2021-10-25 10:22:42,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-25 10:22:42,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:42,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-25 10:22:42,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=2559, Unknown=0, NotChecked=0, Total=2862 [2021-10-25 10:22:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:42,843 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:42,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.0185185185185186) internal successors, (109), 54 states have internal predecessors, (109), 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) [2021-10-25 10:22:42,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:42,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:42,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:42,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:42,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:42,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:48,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:22:48,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-25 10:22:48,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-25 10:22:48,616 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:48,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:48,616 INFO L82 PathProgramCache]: Analyzing trace with hash -251893034, now seen corresponding path program 13 times [2021-10-25 10:22:48,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:48,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919475025] [2021-10-25 10:22:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:48,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 100 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:48,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:48,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919475025] [2021-10-25 10:22:48,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919475025] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:48,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469041691] [2021-10-25 10:22:48,958 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-25 10:22:48,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:48,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:48,964 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) [2021-10-25 10:22:48,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-25 10:22:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:49,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-25 10:22:49,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 121 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:50,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469041691] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:50,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:50,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 52 [2021-10-25 10:22:50,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008439247] [2021-10-25 10:22:50,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-25 10:22:50,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:50,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-25 10:22:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=2171, Unknown=0, NotChecked=0, Total=2652 [2021-10-25 10:22:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:50,665 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:50,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.25) internal successors, (117), 52 states have internal predecessors, (117), 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) [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:50,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:50,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:50,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:22:50,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:51,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:51,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:51,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:22:51,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:22:51,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-25 10:22:52,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:52,055 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:52,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:52,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2066789222, now seen corresponding path program 14 times [2021-10-25 10:22:52,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:52,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148798952] [2021-10-25 10:22:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:52,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:52,400 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 144 proven. 144 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:22:52,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:52,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148798952] [2021-10-25 10:22:52,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148798952] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:52,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749222580] [2021-10-25 10:22:52,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 10:22:52,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:52,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:52,402 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) [2021-10-25 10:22:52,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-25 10:22:53,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 10:22:53,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:22:53,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-25 10:22:53,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:22:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 144 proven. 144 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 10:22:53,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749222580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:53,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:22:53,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 41 [2021-10-25 10:22:53,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987416062] [2021-10-25 10:22:53,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-25 10:22:53,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:22:53,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-25 10:22:53,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1222, Unknown=0, NotChecked=0, Total=1640 [2021-10-25 10:22:53,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:53,709 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:22:53,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.341463414634146) internal successors, (96), 41 states have internal predecessors, (96), 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) [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:53,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:22:53,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:22:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:22:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:22:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:22:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:22:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:22:54,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-25 10:22:54,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-25 10:22:54,199 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:22:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:22:54,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1849244024, now seen corresponding path program 15 times [2021-10-25 10:22:54,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:22:54,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667363833] [2021-10-25 10:22:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:22:54,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:22:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:22:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 66 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:22:56,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:22:56,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667363833] [2021-10-25 10:22:56,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667363833] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:22:56,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452922624] [2021-10-25 10:22:56,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 10:22:56,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:22:56,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:22:56,546 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) [2021-10-25 10:22:56,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-25 10:22:57,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-10-25 10:22:57,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:22:57,358 WARN L261 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 119 conjunts are in the unsatisfiable core [2021-10-25 10:22:57,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:23:02,229 INFO L354 Elim1Store]: treesize reduction 842, result has 17.5 percent of original size [2021-10-25 10:23:02,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 66 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 105 case distinctions, treesize of input 121 treesize of output 237 [2021-10-25 10:23:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 314 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:23:02,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452922624] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:23:02,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:23:02,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36] total 66 [2021-10-25 10:23:02,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284936710] [2021-10-25 10:23:02,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-10-25 10:23:02,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:23:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-10-25 10:23:02,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=3928, Unknown=0, NotChecked=0, Total=4290 [2021-10-25 10:23:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:23:02,913 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:23:02,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.015151515151515) internal successors, (133), 66 states have internal predecessors, (133), 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) [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:23:02,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:23:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:23:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:23:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:23:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:23:11,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-10-25 10:23:11,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-25 10:23:11,348 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:23:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:23:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1099057160, now seen corresponding path program 16 times [2021-10-25 10:23:11,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:23:11,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279483291] [2021-10-25 10:23:11,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:23:11,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:23:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:23:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 65 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:23:13,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:23:13,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279483291] [2021-10-25 10:23:13,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279483291] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:23:13,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592822151] [2021-10-25 10:23:13,691 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 10:23:13,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:23:13,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:23:13,692 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) [2021-10-25 10:23:13,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-25 10:23:14,676 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 10:23:14,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:23:14,679 WARN L261 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 122 conjunts are in the unsatisfiable core [2021-10-25 10:23:14,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:23:18,964 INFO L354 Elim1Store]: treesize reduction 214, result has 1.4 percent of original size [2021-10-25 10:23:18,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 78 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 27 case distinctions, treesize of input 102 treesize of output 49 [2021-10-25 10:23:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:23:19,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592822151] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:23:19,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:23:19,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 35] total 67 [2021-10-25 10:23:19,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386958996] [2021-10-25 10:23:19,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-10-25 10:23:19,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:23:19,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-10-25 10:23:19,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=4029, Unknown=0, NotChecked=0, Total=4422 [2021-10-25 10:23:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:23:19,044 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:23:19,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.1044776119402986) internal successors, (141), 67 states have internal predecessors, (141), 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) [2021-10-25 10:23:19,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:23:19,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:23:19,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:23:19,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:23:19,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:23:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:23:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:23:27,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-25 10:23:27,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-25 10:23:27,448 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:23:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:23:27,449 INFO L82 PathProgramCache]: Analyzing trace with hash 317093752, now seen corresponding path program 17 times [2021-10-25 10:23:27,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:23:27,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760236144] [2021-10-25 10:23:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:23:27,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:23:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:23:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 92 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:23:30,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:23:30,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760236144] [2021-10-25 10:23:30,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760236144] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:23:30,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000052230] [2021-10-25 10:23:30,157 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 10:23:30,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:23:30,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:23:30,159 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:23:30,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-25 10:23:31,388 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-10-25 10:23:31,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:23:31,390 WARN L261 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 130 conjunts are in the unsatisfiable core [2021-10-25 10:23:31,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:23:36,750 INFO L354 Elim1Store]: treesize reduction 230, result has 1.3 percent of original size [2021-10-25 10:23:36,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 91 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 29 case distinctions, treesize of input 110 treesize of output 53 [2021-10-25 10:23:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:23:36,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000052230] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:23:36,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:23:36,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 37] total 73 [2021-10-25 10:23:36,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668877972] [2021-10-25 10:23:36,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-25 10:23:36,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:23:36,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-25 10:23:36,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=4933, Unknown=0, NotChecked=0, Total=5256 [2021-10-25 10:23:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:23:36,813 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:23:36,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.0684931506849313) internal successors, (151), 73 states have internal predecessors, (151), 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) [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:36,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:23:36,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:23:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:23:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:23:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:23:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:23:48,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-25 10:23:49,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:23:49,092 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:23:49,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:23:49,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1987135496, now seen corresponding path program 18 times [2021-10-25 10:23:49,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:23:49,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747552371] [2021-10-25 10:23:49,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:23:49,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:23:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:23:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 81 proven. 401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:23:51,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:23:51,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747552371] [2021-10-25 10:23:51,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747552371] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:23:51,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867026814] [2021-10-25 10:23:51,959 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-25 10:23:51,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:23:51,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:23:51,960 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:23:51,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-25 10:23:53,396 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-10-25 10:23:53,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:23:53,398 WARN L261 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 143 conjunts are in the unsatisfiable core [2021-10-25 10:23:53,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:24:03,887 INFO L354 Elim1Store]: treesize reduction 2132, result has 23.3 percent of original size [2021-10-25 10:24:03,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 28 select indices, 28 select index equivalence classes, 105 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 273 case distinctions, treesize of input 151 treesize of output 711 [2021-10-25 10:24:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 0 proven. 482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:24:13,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867026814] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:24:13,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:24:13,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 42] total 78 [2021-10-25 10:24:13,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285183198] [2021-10-25 10:24:13,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-25 10:24:13,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:24:13,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-25 10:24:13,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=5566, Unknown=0, NotChecked=0, Total=6006 [2021-10-25 10:24:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:24:13,112 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:24:13,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.0128205128205128) internal successors, (157), 78 states have internal predecessors, (157), 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) [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:24:13,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:24:13,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:24:13,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:24:13,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:24:13,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:24:13,113 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:24:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:24:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:24:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:24:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:24:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:24:27,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:24:27,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-25 10:24:27,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:24:27,778 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:24:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:24:27,778 INFO L82 PathProgramCache]: Analyzing trace with hash -956188296, now seen corresponding path program 19 times [2021-10-25 10:24:27,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:24:27,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076176616] [2021-10-25 10:24:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:24:27,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:24:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:24:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 81 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:24:31,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:24:31,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076176616] [2021-10-25 10:24:31,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076176616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:24:31,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799431829] [2021-10-25 10:24:31,098 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-25 10:24:31,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:24:31,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:24:31,099 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:24:31,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-25 10:24:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:24:32,740 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 146 conjunts are in the unsatisfiable core [2021-10-25 10:24:32,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:24:38,521 INFO L354 Elim1Store]: treesize reduction 262, result has 1.1 percent of original size [2021-10-25 10:24:38,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 120 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 33 case distinctions, treesize of input 120 treesize of output 55 [2021-10-25 10:24:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 0 proven. 546 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:24:38,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799431829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:24:38,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:24:38,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41] total 79 [2021-10-25 10:24:38,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813243463] [2021-10-25 10:24:38,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-10-25 10:24:38,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:24:38,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-10-25 10:24:38,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=523, Invalid=5639, Unknown=0, NotChecked=0, Total=6162 [2021-10-25 10:24:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:24:38,590 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:24:38,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 2.088607594936709) internal successors, (165), 79 states have internal predecessors, (165), 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) [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:24:38,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:24:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:24:50,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:24:50,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:24:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:24:50,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-25 10:24:50,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-25 10:24:50,811 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:24:50,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:24:50,812 INFO L82 PathProgramCache]: Analyzing trace with hash -96814088, now seen corresponding path program 20 times [2021-10-25 10:24:50,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:24:50,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47330634] [2021-10-25 10:24:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:24:50,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:24:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:24:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 126 proven. 488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:24:54,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:24:54,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47330634] [2021-10-25 10:24:54,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47330634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:24:54,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585146819] [2021-10-25 10:24:54,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 10:24:54,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:24:54,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:24:54,463 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:24:54,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-25 10:24:56,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 10:24:56,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:24:56,372 WARN L261 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 154 conjunts are in the unsatisfiable core [2021-10-25 10:24:56,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:25:02,755 INFO L354 Elim1Store]: treesize reduction 278, result has 1.1 percent of original size [2021-10-25 10:25:02,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 136 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 35 case distinctions, treesize of input 126 treesize of output 57 [2021-10-25 10:25:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 0 proven. 614 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:25:02,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585146819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:25:02,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:25:02,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 43] total 83 [2021-10-25 10:25:02,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168199645] [2021-10-25 10:25:02,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-10-25 10:25:02,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:25:02,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-10-25 10:25:02,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=588, Invalid=6218, Unknown=0, NotChecked=0, Total=6806 [2021-10-25 10:25:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:25:02,824 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:25:02,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 2.0843373493975905) internal successors, (173), 83 states have internal predecessors, (173), 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) [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:25:02,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:25:02,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:25:15,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:25:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:25:15,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-25 10:25:15,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-25 10:25:16,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-25 10:25:16,187 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:25:16,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:25:16,188 INFO L82 PathProgramCache]: Analyzing trace with hash -526057608, now seen corresponding path program 21 times [2021-10-25 10:25:16,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:25:16,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262891576] [2021-10-25 10:25:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:25:16,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:25:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:25:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 126 proven. 560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:25:20,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:25:20,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262891576] [2021-10-25 10:25:20,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262891576] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:25:20,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530321981] [2021-10-25 10:25:20,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 10:25:20,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:25:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:25:20,090 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:25:20,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-25 10:25:22,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2021-10-25 10:25:22,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:25:22,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 167 conjunts are in the unsatisfiable core [2021-10-25 10:25:22,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:25:32,805 INFO L354 Elim1Store]: treesize reduction 1856, result has 16.9 percent of original size [2021-10-25 10:25:32,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 28 select indices, 28 select index equivalence classes, 153 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 225 case distinctions, treesize of input 163 treesize of output 447 [2021-10-25 10:25:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 0 proven. 686 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:25:34,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530321981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:25:34,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:25:34,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 48] total 90 [2021-10-25 10:25:34,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515062485] [2021-10-25 10:25:34,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2021-10-25 10:25:34,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:25:34,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-10-25 10:25:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=589, Invalid=7421, Unknown=0, NotChecked=0, Total=8010 [2021-10-25 10:25:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:25:34,326 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:25:34,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 2.011111111111111) internal successors, (181), 90 states have internal predecessors, (181), 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) [2021-10-25 10:25:34,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:25:34,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:25:34,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:25:34,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:34,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-10-25 10:25:34,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:25:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-25 10:25:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-10-25 10:25:51,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-25 10:25:52,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:25:52,106 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:25:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:25:52,106 INFO L82 PathProgramCache]: Analyzing trace with hash -904150024, now seen corresponding path program 22 times [2021-10-25 10:25:52,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:25:52,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397716097] [2021-10-25 10:25:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:25:52,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:25:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:25:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 111 proven. 651 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:25:56,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:25:56,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397716097] [2021-10-25 10:25:56,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397716097] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:25:56,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655239601] [2021-10-25 10:25:56,635 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 10:25:56,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:25:56,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:25:56,639 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:25:56,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-25 10:25:59,025 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 10:25:59,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:25:59,027 WARN L261 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 170 conjunts are in the unsatisfiable core [2021-10-25 10:25:59,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:26:06,729 INFO L354 Elim1Store]: treesize reduction 310, result has 1.0 percent of original size [2021-10-25 10:26:06,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 171 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 39 case distinctions, treesize of input 138 treesize of output 61 [2021-10-25 10:26:06,800 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 0 proven. 762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:26:06,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655239601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:26:06,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 10:26:06,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 47] total 91 [2021-10-25 10:26:06,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635619060] [2021-10-25 10:26:06,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2021-10-25 10:26:06,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 10:26:06,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-10-25 10:26:06,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=684, Invalid=7506, Unknown=0, NotChecked=0, Total=8190 [2021-10-25 10:26:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:26:06,803 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 10:26:06,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 2.076923076923077) internal successors, (189), 91 states have internal predecessors, (189), 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) [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2021-10-25 10:26:06,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-25 10:26:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-10-25 10:26:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-10-25 10:26:22,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-25 10:26:22,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:26:22,894 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 10:26:22,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 10:26:22,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1662367368, now seen corresponding path program 23 times [2021-10-25 10:26:22,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 10:26:22,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80958953] [2021-10-25 10:26:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 10:26:22,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 10:26:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 10:26:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 181 proven. 661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 10:26:27,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 10:26:27,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80958953] [2021-10-25 10:26:27,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80958953] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 10:26:27,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815808352] [2021-10-25 10:26:27,747 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 10:26:27,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 10:26:27,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 10:26:27,749 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 10:26:27,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-25 10:26:30,457 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2021-10-25 10:26:30,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 10:26:30,460 WARN L261 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 177 conjunts are in the unsatisfiable core [2021-10-25 10:26:30,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 10:26:42,188 INFO L354 Elim1Store]: treesize reduction 1520, result has 17.8 percent of original size [2021-10-25 10:26:42,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 42 new quantified variables, introduced 231 case distinctions, treesize of input 439 treesize of output 560 Received shutdown request... [2021-10-25 10:34:42,905 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-25 10:34:42,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 10:34:42,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-25 10:34:42,951 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 10:34:42,952 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 10:34:42,951 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 10:34:43,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-25 10:34:43,108 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 103 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. [2021-10-25 10:34:43,110 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 10:34:43,110 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 10:34:43,110 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 10:34:43,117 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 10:34:43,117 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 10:34:43,119 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:34:43 BasicIcfg [2021-10-25 10:34:43,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 10:34:43,120 INFO L168 Benchmark]: Toolchain (without parser) took 776656.95 ms. Allocated memory was 204.5 MB in the beginning and 777.0 MB in the end (delta: 572.5 MB). Free memory was 161.7 MB in the beginning and 139.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 671.6 MB. Max. memory is 8.0 GB. [2021-10-25 10:34:43,121 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 204.5 MB. Free memory is still 162.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 10:34:43,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.56 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 160.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 10:34:43,121 INFO L168 Benchmark]: Boogie Preprocessor took 13.89 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 159.2 MB in the end (delta: 914.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 10:34:43,122 INFO L168 Benchmark]: RCFGBuilder took 221.11 ms. Allocated memory is still 204.5 MB. Free memory was 159.1 MB in the beginning and 146.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-25 10:34:43,122 INFO L168 Benchmark]: TraceAbstraction took 776393.16 ms. Allocated memory was 204.5 MB in the beginning and 777.0 MB in the end (delta: 572.5 MB). Free memory was 145.9 MB in the beginning and 139.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 655.8 MB. Max. memory is 8.0 GB. [2021-10-25 10:34:43,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 204.5 MB. Free memory is still 162.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.56 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 160.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.89 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 159.2 MB in the end (delta: 914.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 221.11 ms. Allocated memory is still 204.5 MB. Free memory was 159.1 MB in the beginning and 146.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 776393.16 ms. Allocated memory was 204.5 MB in the beginning and 777.0 MB in the end (delta: 572.5 MB). Free memory was 145.9 MB in the beginning and 139.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 655.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5246, positive: 3609, positive conditional: 3281, positive unconditional: 328, negative: 1637, negative conditional: 1637, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3609, positive: 3609, positive conditional: 0, positive unconditional: 3609, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3609, positive: 3318, positive conditional: 0, positive unconditional: 3318, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 291, unknown conditional: 0, unknown unconditional: 291] , Statistics on independence cache: Total cache size (in pairs): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 1637 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 34, Number of persistent set computation: 48, Number of trivial persistent sets: 28, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5246, positive: 3609, positive conditional: 3281, positive unconditional: 328, negative: 1637, negative conditional: 1637, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3609, positive: 3609, positive conditional: 0, positive unconditional: 3609, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 291, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3609, positive: 3318, positive conditional: 0, positive unconditional: 3318, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 291, unknown conditional: 0, unknown unconditional: 291] , Statistics on independence cache: Total cache size (in pairs): 291, Positive cache size: 291, Positive conditional cache size: 0, Positive unconditional cache size: 291, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 1637 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 103 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 103 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 103 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 103 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 776284.4ms, OverallIterations: 25, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 119342.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1093, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 165.6ms SsaConstructionTime, 954.7ms SatisfiabilityAnalysisTime, 134045.6ms InterpolantComputationTime, 2598 NumberOfCodeBlocks, 2598 NumberOfCodeBlocksAsserted, 151 NumberOfCheckSat, 2552 ConstructedInterpolants, 426 QuantifiedInterpolants, 180781 SizeOfPredicates, 124 NumberOfNonLiveVariables, 3261 ConjunctsInSsa, 1584 ConjunctsInUnsatCore, 46 InterpolantComputations, 2 PerfectInterpolantSequences, 1713/11005 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown