/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longer-1.line301.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 14:25:13,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 14:25:13,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 14:25:13,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 14:25:13,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 14:25:13,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 14:25:13,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 14:25:13,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 14:25:13,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 14:25:13,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 14:25:13,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 14:25:13,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 14:25:13,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 14:25:13,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 14:25:13,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 14:25:13,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 14:25:13,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 14:25:13,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 14:25:13,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 14:25:13,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 14:25:13,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 14:25:13,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 14:25:13,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 14:25:13,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 14:25:13,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-04 14:25:13,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-04 14:25:13,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-04 14:25:13,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-04 14:25:13,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-04 14:25:13,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-04 14:25:13,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-04 14:25:13,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-04 14:25:13,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-04 14:25:13,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-04 14:25:13,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-04 14:25:13,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-04 14:25:13,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-04 14:25:13,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-04 14:25:13,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 14:25:13,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 14:25:13,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 14:25:13,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 14:25:13,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 14:25:13,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 14:25:13,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 14:25:13,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 14:25:13,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 14:25:13,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 14:25:13,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 14:25:13,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 14:25:13,847 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 14:25:13,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 14:25:13,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 14:25:13,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 14:25:13,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 14:25:13,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 14:25:13,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 14:25:13,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 14:25:13,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 14:25:13,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 14:25:13,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 14:25:13,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 14:25:13,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 14:25:13,850 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 14:25:14,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 14:25:14,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 14:25:14,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 14:25:14,025 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 14:25:14,026 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 14:25:14,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longer-1.line301.bpl [2022-10-04 14:25:14,028 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longer-1.line301.bpl' [2022-10-04 14:25:14,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 14:25:14,068 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 14:25:14,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 14:25:14,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 14:25:14,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 14:25:14,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 14:25:14,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 14:25:14,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 14:25:14,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 14:25:14,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/1) ... [2022-10-04 14:25:14,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 14:25:14,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:14,173 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) [2022-10-04 14:25:14,178 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 [2022-10-04 14:25:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-10-04 14:25:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-10-04 14:25:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-10-04 14:25:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-10-04 14:25:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 14:25:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 14:25:14,204 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 14:25:14,337 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 14:25:14,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 14:25:14,651 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 14:25:14,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 14:25:14,662 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-04 14:25:14,664 INFO L202 PluginConnector]: Adding new model stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:25:14 BoogieIcfgContainer [2022-10-04 14:25:14,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 14:25:14,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 14:25:14,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 14:25:14,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 14:25:14,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:25:14" (1/2) ... [2022-10-04 14:25:14,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759dbb1e and model type stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:25:14, skipping insertion in model container [2022-10-04 14:25:14,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "stack_longer-1.line301.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:25:14" (2/2) ... [2022-10-04 14:25:14,683 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.line301.bpl [2022-10-04 14:25:14,689 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 14:25:14,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 14:25:14,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 14:25:14,696 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 14:25:14,776 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 14:25:14,831 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:25:14,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:25:14,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:14,836 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) [2022-10-04 14:25:14,836 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 [2022-10-04 14:25:14,864 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:25:14,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 14:25:14,878 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ac7f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:25:14,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:25:15,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 14:25:15,159 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 14:25:15,161 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-04 14:25:15,175 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:25:15,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:25:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:15,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 14:25:15,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-04 14:25:15,182 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:25:15,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 14:25:15,183 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ac7f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:25:15,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:25:15,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 14:25:15,189 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 14:25:15,189 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-04 14:25:15,192 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:25:15,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:25:15,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:15,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 14:25:15,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-04 14:25:15,249 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:25:15,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-04 14:25:15,250 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ac7f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:25:15,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:25:15,250 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-04 14:25:15,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 14:25:15,251 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 14:25:15,251 INFO L307 ceAbstractionStarter]: Result for error location t1Err0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-04 14:25:15,254 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:25:15,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:25:15,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:15,257 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 14:25:15,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-04 14:25:15,261 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:25:15,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-04 14:25:15,262 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ac7f55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:25:15,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:25:15,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:15,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:15,521 INFO L85 PathProgramCache]: Analyzing trace with hash -179252408, now seen corresponding path program 1 times [2022-10-04 14:25:15,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:15,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333181480] [2022-10-04 14:25:15,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-04 14:25:15,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:15,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333181480] [2022-10-04 14:25:15,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333181480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:15,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:15,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 14:25:15,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19627255] [2022-10-04 14:25:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:15,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 14:25:15,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 14:25:15,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 14:25:15,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:15,852 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:15,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 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) [2022-10-04 14:25:15,853 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:16,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:16,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 14:25:16,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:16,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:16,062 INFO L85 PathProgramCache]: Analyzing trace with hash 806714530, now seen corresponding path program 1 times [2022-10-04 14:25:16,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:16,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771633893] [2022-10-04 14:25:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-10-04 14:25:16,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:16,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771633893] [2022-10-04 14:25:16,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771633893] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:16,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:16,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 14:25:16,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551921278] [2022-10-04 14:25:16,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:16,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 14:25:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:16,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 14:25:16,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 14:25:16,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:16,262 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:16,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2022-10-04 14:25:16,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:16,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:16,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 14:25:16,326 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:16,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:16,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1346591630, now seen corresponding path program 1 times [2022-10-04 14:25:16,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:16,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087426651] [2022-10-04 14:25:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:16,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:17,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087426651] [2022-10-04 14:25:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087426651] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:17,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:17,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-04 14:25:17,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229343859] [2022-10-04 14:25:17,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:17,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-04 14:25:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-04 14:25:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-10-04 14:25:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:17,014 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:17,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.142857142857143) internal successors, (150), 22 states have internal predecessors, (150), 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) [2022-10-04 14:25:17,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:17,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:17,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:18,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 14:25:18,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash 279571716, now seen corresponding path program 1 times [2022-10-04 14:25:18,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:18,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777700368] [2022-10-04 14:25:18,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:18,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 202 proven. 27 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:25:18,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:18,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777700368] [2022-10-04 14:25:18,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777700368] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:25:18,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004811265] [2022-10-04 14:25:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:18,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:18,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:18,619 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) [2022-10-04 14:25:18,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-04 14:25:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:18,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-04 14:25:18,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:25:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-04 14:25:18,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 14:25:18,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004811265] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:18,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 14:25:18,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-04 14:25:18,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576605571] [2022-10-04 14:25:18,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:18,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 14:25:18,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:18,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 14:25:18,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-04 14:25:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:18,981 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:18,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:25:18,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:18,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:18,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:18,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:19,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:19,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-04 14:25:19,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:19,487 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:19,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1438731123, now seen corresponding path program 1 times [2022-10-04 14:25:19,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:19,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278842177] [2022-10-04 14:25:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:19,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 266 proven. 27 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-10-04 14:25:19,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278842177] [2022-10-04 14:25:19,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278842177] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:25:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550326603] [2022-10-04 14:25:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:19,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:19,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:19,620 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) [2022-10-04 14:25:19,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-04 14:25:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:19,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-04 14:25:19,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:25:19,962 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 266 proven. 27 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-10-04 14:25:19,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:25:20,166 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 266 proven. 27 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-10-04 14:25:20,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550326603] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:25:20,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:25:20,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-04 14:25:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715118500] [2022-10-04 14:25:20,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:25:20,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-04 14:25:20,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:20,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-04 14:25:20,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-04 14:25:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:20,169 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:20,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 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) [2022-10-04 14:25:20,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:20,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:20,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:20,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:20,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:25:20,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-04 14:25:20,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:20,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:20,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1879396575, now seen corresponding path program 1 times [2022-10-04 14:25:20,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:20,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567474196] [2022-10-04 14:25:20,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:20,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:21,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:21,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567474196] [2022-10-04 14:25:21,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567474196] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:25:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59242095] [2022-10-04 14:25:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:21,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:21,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:21,103 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) [2022-10-04 14:25:21,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-04 14:25:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:21,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 59 conjunts are in the unsatisfiable core [2022-10-04 14:25:21,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:25:21,799 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-04 14:25:21,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-04 14:25:21,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 14:25:22,031 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-04 14:25:22,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-10-04 14:25:22,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 14:25:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:23,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:25:29,969 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-04 14:25:36,062 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-04 14:25:38,712 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:25:38,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 61 [2022-10-04 14:25:38,855 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:25:38,856 INFO L390 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 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 124 [2022-10-04 14:25:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:39,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59242095] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:25:39,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:25:39,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 25, 18] total 60 [2022-10-04 14:25:39,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077569834] [2022-10-04 14:25:39,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:25:39,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-10-04 14:25:39,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:39,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-10-04 14:25:39,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=3327, Unknown=0, NotChecked=0, Total=3660 [2022-10-04 14:25:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:39,028 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:39,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 9.383333333333333) internal successors, (563), 61 states have internal predecessors, (563), 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) [2022-10-04 14:25:39,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:39,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:39,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:39,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:39,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:25:39,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:41,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-04 14:25:42,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:42,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:42,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2094464235, now seen corresponding path program 2 times [2022-10-04 14:25:42,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:42,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107158157] [2022-10-04 14:25:42,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:42,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-10-04 14:25:42,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:42,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107158157] [2022-10-04 14:25:42,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107158157] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:42,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:42,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 14:25:42,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963420246] [2022-10-04 14:25:42,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:42,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 14:25:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:42,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 14:25:42,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-04 14:25:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:42,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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) [2022-10-04 14:25:42,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:42,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:42,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:42,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:42,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:42,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-04 14:25:42,533 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:42,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:42,533 INFO L85 PathProgramCache]: Analyzing trace with hash -276656702, now seen corresponding path program 1 times [2022-10-04 14:25:42,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:42,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712903273] [2022-10-04 14:25:42,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:42,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-10-04 14:25:42,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:42,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712903273] [2022-10-04 14:25:42,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712903273] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:42,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:42,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 14:25:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593688128] [2022-10-04 14:25:42,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:42,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 14:25:42,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:42,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 14:25:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-04 14:25:42,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,644 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:42,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.166666666666664) internal successors, (361), 6 states have internal predecessors, (361), 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) [2022-10-04 14:25:42,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:42,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:42,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-04 14:25:42,850 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:42,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:42,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1139474976, now seen corresponding path program 2 times [2022-10-04 14:25:42,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:42,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94828179] [2022-10-04 14:25:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:42,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-10-04 14:25:42,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:42,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94828179] [2022-10-04 14:25:42,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94828179] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:42,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:42,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-04 14:25:42,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899463109] [2022-10-04 14:25:42,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:42,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 14:25:42,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:42,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 14:25:42,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-04 14:25:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,980 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:42,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:42,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:25:43,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-04 14:25:43,167 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:43,167 INFO L85 PathProgramCache]: Analyzing trace with hash 580269283, now seen corresponding path program 3 times [2022-10-04 14:25:43,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:43,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897231256] [2022-10-04 14:25:43,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:43,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 1281 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2022-10-04 14:25:43,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:43,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897231256] [2022-10-04 14:25:43,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897231256] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:25:43,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:25:43,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-04 14:25:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513256292] [2022-10-04 14:25:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:25:43,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-04 14:25:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:43,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-04 14:25:43,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-04 14:25:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:43,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:43,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.2) internal successors, (391), 5 states have internal predecessors, (391), 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) [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:25:43,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:25:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:25:43,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-04 14:25:43,491 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:43,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1143466869, now seen corresponding path program 1 times [2022-10-04 14:25:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:43,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032827455] [2022-10-04 14:25:43,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 444 proven. 261 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:25:43,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:43,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032827455] [2022-10-04 14:25:43,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032827455] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:25:43,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873119518] [2022-10-04 14:25:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:43,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:43,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:43,652 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) [2022-10-04 14:25:43,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-04 14:25:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:43,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-04 14:25:43,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:25:44,120 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 444 proven. 261 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:25:44,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:25:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 444 proven. 261 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:25:44,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873119518] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:25:44,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:25:44,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-04 14:25:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649399424] [2022-10-04 14:25:44,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:25:44,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-04 14:25:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:44,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-04 14:25:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-04 14:25:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:44,437 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:44,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 47.5) internal successors, (855), 18 states have internal predecessors, (855), 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) [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:25:44,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:25:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:25:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 14:25:44,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-04 14:25:44,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-04 14:25:44,755 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:25:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:25:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1619766015, now seen corresponding path program 2 times [2022-10-04 14:25:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:25:44,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112032680] [2022-10-04 14:25:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:25:44,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:25:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:25:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:45,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:25:45,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112032680] [2022-10-04 14:25:45,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112032680] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:25:45,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709384462] [2022-10-04 14:25:45,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 14:25:45,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:25:45,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:25:45,750 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) [2022-10-04 14:25:45,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-04 14:25:45,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-04 14:25:45,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:25:45,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 71 conjunts are in the unsatisfiable core [2022-10-04 14:25:45,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:25:46,512 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-04 14:25:46,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-04 14:25:46,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 14:25:46,856 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-10-04 14:25:46,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-10-04 14:25:46,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 14:25:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:49,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:25:57,397 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:25:57,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 115 [2022-10-04 14:25:57,637 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:25:57,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 76 treesize of output 230 [2022-10-04 14:25:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:25:59,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709384462] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:25:59,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:25:59,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 30, 24] total 88 [2022-10-04 14:25:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524119710] [2022-10-04 14:25:59,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:25:59,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-10-04 14:25:59,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:25:59,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-10-04 14:25:59,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=7330, Unknown=0, NotChecked=0, Total=7832 [2022-10-04 14:25:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:59,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:25:59,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 10.488636363636363) internal successors, (923), 89 states have internal predecessors, (923), 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) [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:25:59,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:25:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:25:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-04 14:25:59,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:06,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:26:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:26:06,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-04 14:26:06,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:26:06,248 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:26:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:26:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1290298929, now seen corresponding path program 2 times [2022-10-04 14:26:06,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:26:06,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252542263] [2022-10-04 14:26:06,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:26:06,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:26:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:26:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2519 backedges. 928 proven. 1449 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:26:06,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:26:06,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252542263] [2022-10-04 14:26:06,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252542263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:26:06,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231486631] [2022-10-04 14:26:06,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 14:26:06,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:26:06,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:26:06,517 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) [2022-10-04 14:26:06,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-04 14:26:06,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-04 14:26:06,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:26:06,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-04 14:26:06,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:26:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2519 backedges. 928 proven. 1449 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:26:07,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:26:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2519 backedges. 928 proven. 1449 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:26:07,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231486631] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:26:07,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:26:07,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-04 14:26:07,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972004911] [2022-10-04 14:26:07,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:26:07,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-04 14:26:07,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:26:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-04 14:26:07,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-04 14:26:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:07,895 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:26:07,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 39.26470588235294) internal successors, (1335), 34 states have internal predecessors, (1335), 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) [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:26:07,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:26:08,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-04 14:26:08,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-04 14:26:08,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-04 14:26:08,394 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:26:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:26:08,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1290419387, now seen corresponding path program 3 times [2022-10-04 14:26:08,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:26:08,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332428988] [2022-10-04 14:26:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:26:08,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:26:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:26:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1519 backedges. 0 proven. 1519 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:26:09,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:26:09,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332428988] [2022-10-04 14:26:09,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332428988] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:26:09,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598950582] [2022-10-04 14:26:09,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-04 14:26:09,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:26:09,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:26:09,777 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) [2022-10-04 14:26:09,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-04 14:26:09,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-04 14:26:09,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:26:09,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 72 conjunts are in the unsatisfiable core [2022-10-04 14:26:09,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:26:10,338 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-10-04 14:26:10,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-04 14:26:10,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 14:26:10,610 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-10-04 14:26:10,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-10-04 14:26:10,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 14:26:13,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1519 backedges. 382 proven. 105 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-10-04 14:26:13,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:26:26,895 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:26:26,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 336 treesize of output 334 [2022-10-04 14:26:27,558 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:26:27,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 121 treesize of output 391 [2022-10-04 14:26:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1519 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-10-04 14:26:30,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598950582] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:26:30,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:26:30,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 29, 27] total 100 [2022-10-04 14:26:30,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268918851] [2022-10-04 14:26:30,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:26:30,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-10-04 14:26:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:26:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-10-04 14:26:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=9685, Unknown=0, NotChecked=0, Total=10100 [2022-10-04 14:26:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:30,570 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:26:30,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 10.03) internal successors, (1003), 101 states have internal predecessors, (1003), 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) [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-10-04 14:26:30,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:01,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:01,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-04 14:27:01,252 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:01,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:01,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1629078441, now seen corresponding path program 3 times [2022-10-04 14:27:01,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:01,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358234729] [2022-10-04 14:27:01,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:01,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8743 backedges. 1896 proven. 6705 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-10-04 14:27:01,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:01,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358234729] [2022-10-04 14:27:01,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358234729] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:01,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719593333] [2022-10-04 14:27:01,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-04 14:27:01,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:01,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:01,910 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) [2022-10-04 14:27:01,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-04 14:27:02,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-04 14:27:02,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:27:02,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-04 14:27:02,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 8743 backedges. 835 proven. 0 refuted. 0 times theorem prover too weak. 7908 trivial. 0 not checked. [2022-10-04 14:27:02,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 14:27:02,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719593333] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:27:02,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 14:27:02,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 36 [2022-10-04 14:27:02,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856487616] [2022-10-04 14:27:02,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:27:02,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-04 14:27:02,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:02,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-04 14:27:02,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-10-04 14:27:02,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:02,235 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:02,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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) [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:02,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:02,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:02,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-04 14:27:02,814 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash 604901711, now seen corresponding path program 1 times [2022-10-04 14:27:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:02,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232388520] [2022-10-04 14:27:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:02,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 1896 proven. 6705 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:03,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:03,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232388520] [2022-10-04 14:27:03,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232388520] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:03,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627755087] [2022-10-04 14:27:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:03,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:03,442 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) [2022-10-04 14:27:03,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-04 14:27:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:03,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2274 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-04 14:27:03,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 1896 proven. 6705 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:04,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:27:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8718 backedges. 1896 proven. 6705 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:06,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627755087] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:27:06,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:27:06,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-10-04 14:27:06,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777549196] [2022-10-04 14:27:06,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:27:06,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-04 14:27:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:06,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-04 14:27:06,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-10-04 14:27:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:06,367 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:06,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 34.57575757575758) internal successors, (2282), 66 states have internal predecessors, (2282), 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) [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:06,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:08,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:08,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:27:08,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:09,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-04 14:27:09,136 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1119412319, now seen corresponding path program 2 times [2022-10-04 14:27:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:09,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90221701] [2022-10-04 14:27:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 32686 backedges. 3832 proven. 28737 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:11,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90221701] [2022-10-04 14:27:11,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90221701] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:11,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203253855] [2022-10-04 14:27:11,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 14:27:11,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:11,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:11,399 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) [2022-10-04 14:27:11,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-04 14:27:11,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-04 14:27:11,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:27:11,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 4002 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-04 14:27:11,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 32686 backedges. 3832 proven. 28737 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:13,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:27:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 32686 backedges. 3832 proven. 28737 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:18,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203253855] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:27:18,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:27:18,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-04 14:27:18,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161206104] [2022-10-04 14:27:18,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:27:18,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-04 14:27:18,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:18,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-04 14:27:18,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-04 14:27:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:18,084 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:18,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 32.323076923076925) internal successors, (4202), 130 states have internal predecessors, (4202), 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) [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:27:18,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:27:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:27:28,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:28,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:28,854 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:28,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:28,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1979186815, now seen corresponding path program 3 times [2022-10-04 14:27:28,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:28,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446688120] [2022-10-04 14:27:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:28,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 126702 backedges. 7704 proven. 118881 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-04 14:27:36,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:36,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446688120] [2022-10-04 14:27:36,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446688120] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:36,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898624579] [2022-10-04 14:27:36,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-04 14:27:36,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:36,646 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) [2022-10-04 14:27:36,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-04 14:27:37,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-04 14:27:37,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:27:37,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-04 14:27:37,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 126702 backedges. 3062 proven. 0 refuted. 0 times theorem prover too weak. 123640 trivial. 0 not checked. [2022-10-04 14:27:37,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 14:27:37,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898624579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:27:37,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 14:27:37,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [129] total 131 [2022-10-04 14:27:37,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776378200] [2022-10-04 14:27:37,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:27:37,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 14:27:37,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:37,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 14:27:37,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4228, Invalid=12802, Unknown=0, NotChecked=0, Total=17030 [2022-10-04 14:27:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:37,257 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:37,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 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) [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:37,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:37,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2022-10-04 14:27:37,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:37,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:27:37,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:27:37,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:27:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-10-04 14:27:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:27:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:27:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:27:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 14:27:40,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-04 14:27:40,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-04 14:27:40,807 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:40,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:40,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1785198146, now seen corresponding path program 1 times [2022-10-04 14:27:40,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:40,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654745103] [2022-10-04 14:27:40,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:40,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 143338 backedges. 41722 proven. 73034 refuted. 0 times theorem prover too weak. 28582 trivial. 0 not checked. [2022-10-04 14:27:45,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:45,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654745103] [2022-10-04 14:27:45,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654745103] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:45,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55859906] [2022-10-04 14:27:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:45,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:45,850 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) [2022-10-04 14:27:45,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-04 14:27:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:46,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 7960 conjuncts, 138 conjunts are in the unsatisfiable core [2022-10-04 14:27:46,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:54,373 INFO L134 CoverageAnalysis]: Checked inductivity of 143338 backedges. 139340 proven. 3998 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:54,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:28:06,999 INFO L134 CoverageAnalysis]: Checked inductivity of 143338 backedges. 139340 proven. 3998 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:28:06,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55859906] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:28:06,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:28:07,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 139, 139] total 281 [2022-10-04 14:28:07,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122165802] [2022-10-04 14:28:07,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:28:07,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 281 states [2022-10-04 14:28:07,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:28:07,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 281 interpolants. [2022-10-04 14:28:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18256, Invalid=60424, Unknown=0, NotChecked=0, Total=78680 [2022-10-04 14:28:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:28:07,020 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:28:07,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 281 states, 281 states have (on average 31.327402135231317) internal successors, (8803), 281 states have internal predecessors, (8803), 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) [2022-10-04 14:28:07,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:28:07,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:28:07,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:28:07,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 14:28:07,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:29:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 14:29:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 572 states. [2022-10-04 14:29:15,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-10-04 14:29:16,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:29:16,151 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:29:16,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:29:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -543685570, now seen corresponding path program 1 times [2022-10-04 14:29:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:29:16,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344986757] [2022-10-04 14:29:16,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:29:16,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:29:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:29:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 160381 backedges. 154531 proven. 5850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:29:27,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:29:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344986757] [2022-10-04 14:29:27,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344986757] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:29:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939843231] [2022-10-04 14:29:27,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:29:27,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:29:27,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:29:27,949 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) [2022-10-04 14:29:27,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-04 14:29:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:29:32,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 8328 conjuncts, 611 conjunts are in the unsatisfiable core [2022-10-04 14:29:32,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:30:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 160381 backedges. 159286 proven. 1095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:30:21,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:30:23,275 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 14:30:23,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 31 [2022-10-04 14:30:47,512 INFO L134 CoverageAnalysis]: Checked inductivity of 160381 backedges. 159286 proven. 1095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:30:47,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939843231] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:30:47,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:30:47,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 303, 161] total 626 [2022-10-04 14:30:47,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989012349] [2022-10-04 14:30:47,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:30:47,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 627 states [2022-10-04 14:30:47,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:30:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 627 interpolants. [2022-10-04 14:30:47,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68265, Invalid=324237, Unknown=0, NotChecked=0, Total=392502 [2022-10-04 14:30:47,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:30:47,566 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:30:47,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 627 states, 626 states have (on average 21.875399361022364) internal successors, (13694), 627 states have internal predecessors, (13694), 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) [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:30:47,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 572 states. [2022-10-04 14:30:47,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:36:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:36:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 14:36:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1240 states. [2022-10-04 14:36:32,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 724 states. [2022-10-04 14:36:32,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-10-04 14:36:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:36:32,640 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:36:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:36:32,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1954900931, now seen corresponding path program 1 times [2022-10-04 14:36:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:36:32,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075183619] [2022-10-04 14:36:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:36:32,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:36:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat