/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/divinefifo-bug_1w1r.line1328.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 21:45:50,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 21:45:50,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 21:45:50,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 21:45:50,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 21:45:50,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 21:45:50,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 21:45:50,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 21:45:50,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 21:45:50,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 21:45:50,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 21:45:50,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 21:45:50,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 21:45:50,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 21:45:50,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 21:45:50,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 21:45:50,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 21:45:50,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 21:45:50,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 21:45:50,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 21:45:50,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 21:45:50,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 21:45:50,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 21:45:50,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 21:45:50,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 21:45:50,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 21:45:50,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 21:45:50,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 21:45:50,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 21:45:50,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 21:45:50,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 21:45:50,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 21:45:50,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 21:45:50,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 21:45:50,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 21:45:50,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 21:45:50,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 21:45:50,674 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 21:45:50,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 21:45:50,678 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 21:45:50,679 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 21:45:50,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 21:45:50,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 21:45:50,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 21:45:50,681 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 21:45:50,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 21:45:50,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:45:50,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 21:45:50,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 21:45:50,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 21:45:50,683 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 21:45:50,683 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 21:45:50,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 21:45:50,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 21:45:50,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 21:45:50,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 21:45:50,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 21:45:50,962 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 21:45:50,963 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 21:45:50,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1328.bpl [2022-09-29 21:45:50,965 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1328.bpl' [2022-09-29 21:45:51,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 21:45:51,057 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 21:45:51,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 21:45:51,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 21:45:51,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 21:45:51,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 21:45:51,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 21:45:51,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 21:45:51,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 21:45:51,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/1) ... [2022-09-29 21:45:51,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:45:51,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:45:51,265 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) [2022-09-29 21:45:51,274 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 [2022-09-29 21:45:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 21:45:51,307 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 21:45:51,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 21:45:51,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 21:45:51,310 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 21:45:51,476 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 21:45:51,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 21:45:52,743 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 21:45:52,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 21:45:52,773 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 21:45:52,776 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:45:52 BoogieIcfgContainer [2022-09-29 21:45:52,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 21:45:52,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 21:45:52,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 21:45:52,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 21:45:52,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:45:51" (1/2) ... [2022-09-29 21:45:52,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11233788 and model type divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 09:45:52, skipping insertion in model container [2022-09-29 21:45:52,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1328.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:45:52" (2/2) ... [2022-09-29 21:45:52,788 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1328.bpl [2022-09-29 21:45:52,795 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 21:45:52,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 21:45:52,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 21:45:52,803 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 21:45:52,915 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 21:45:52,979 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:45:52,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:45:52,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:45:52,981 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) [2022-09-29 21:45:53,003 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 [2022-09-29 21:45:53,017 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:45:53,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:45:53,032 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;@fbd51c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:45:53,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:45:53,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:45:53,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:45:53,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1522145221, now seen corresponding path program 1 times [2022-09-29 21:45:53,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:45:53,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541836911] [2022-09-29 21:45:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:45:53,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:45:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:45:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:45:53,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:45:53,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541836911] [2022-09-29 21:45:53,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541836911] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:45:53,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:45:53,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 21:45:53,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27671584] [2022-09-29 21:45:53,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:45:53,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 21:45:53,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:45:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 21:45:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 21:45:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:45:54,006 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:45:54,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 262.5) internal successors, (525), 2 states have internal predecessors, (525), 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) [2022-09-29 21:45:54,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:45:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:45:54,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 21:45:54,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:45:54,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:45:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1143422289, now seen corresponding path program 1 times [2022-09-29 21:45:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:45:54,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281970238] [2022-09-29 21:45:54,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:45:54,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:45:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:45:55,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:45:55,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:45:55,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281970238] [2022-09-29 21:45:55,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281970238] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:45:55,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:45:55,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-09-29 21:45:55,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542249897] [2022-09-29 21:45:55,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:45:55,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-09-29 21:45:55,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:45:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-09-29 21:45:55,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-09-29 21:45:55,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:45:55,725 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:45:55,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 21.88888888888889) internal successors, (591), 28 states have internal predecessors, (591), 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) [2022-09-29 21:45:55,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:45:55,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:00,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:00,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:46:00,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 21:46:00,356 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:46:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:46:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1220519739, now seen corresponding path program 1 times [2022-09-29 21:46:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:46:00,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823845369] [2022-09-29 21:46:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:46:00,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:46:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:46:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:46:01,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:46:01,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823845369] [2022-09-29 21:46:01,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823845369] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:46:01,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:46:01,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-09-29 21:46:01,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424414429] [2022-09-29 21:46:01,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:46:01,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-09-29 21:46:01,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:46:01,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-09-29 21:46:01,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-09-29 21:46:01,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:01,074 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:46:01,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 47.26315789473684) internal successors, (898), 20 states have internal predecessors, (898), 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) [2022-09-29 21:46:01,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:01,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:46:01,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:06,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:46:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:46:06,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-29 21:46:06,541 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:46:06,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:46:06,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1735080879, now seen corresponding path program 1 times [2022-09-29 21:46:06,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:46:06,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062529300] [2022-09-29 21:46:06,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:46:06,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:46:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:46:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 39254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39254 trivial. 0 not checked. [2022-09-29 21:46:21,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:46:21,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062529300] [2022-09-29 21:46:21,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062529300] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:46:21,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:46:21,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-09-29 21:46:21,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164975038] [2022-09-29 21:46:21,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:46:21,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-09-29 21:46:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:46:21,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-09-29 21:46:21,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=4604, Unknown=0, NotChecked=0, Total=4830 [2022-09-29 21:46:21,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:21,309 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:46:21,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 14.057142857142857) internal successors, (984), 70 states have internal predecessors, (984), 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) [2022-09-29 21:46:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:46:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:46:21,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:46:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:46:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:46:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-09-29 21:46:41,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 21:46:41,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:46:41,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:46:41,296 INFO L85 PathProgramCache]: Analyzing trace with hash 654525349, now seen corresponding path program 1 times [2022-09-29 21:46:41,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:46:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428573270] [2022-09-29 21:46:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:46:41,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:46:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:47:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 81309 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 81259 trivial. 0 not checked. [2022-09-29 21:47:01,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:47:01,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428573270] [2022-09-29 21:47:01,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428573270] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:47:01,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:47:01,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-09-29 21:47:01,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587459761] [2022-09-29 21:47:01,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:47:01,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-09-29 21:47:01,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:47:01,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-09-29 21:47:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=6709, Unknown=0, NotChecked=0, Total=6972 [2022-09-29 21:47:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:47:01,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:47:01,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 11.976190476190476) internal successors, (1006), 84 states have internal predecessors, (1006), 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) [2022-09-29 21:47:01,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:47:01,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:47:01,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:47:01,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2022-09-29 21:47:01,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:47:40,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:47:40,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:47:40,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:47:40,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:47:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-09-29 21:47:40,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-29 21:47:40,709 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:47:40,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:47:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash 161406753, now seen corresponding path program 2 times [2022-09-29 21:47:40,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:47:40,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047596933] [2022-09-29 21:47:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:47:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:47:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:47:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 82088 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 81489 trivial. 0 not checked. [2022-09-29 21:47:57,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:47:57,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047596933] [2022-09-29 21:47:57,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047596933] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:47:57,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:47:57,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2022-09-29 21:47:57,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104525055] [2022-09-29 21:47:57,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:47:57,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-09-29 21:47:57,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:47:57,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-09-29 21:47:57,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=4752, Unknown=0, NotChecked=0, Total=4970 [2022-09-29 21:47:57,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:47:57,822 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:47:57,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 15.746478873239436) internal successors, (1118), 71 states have internal predecessors, (1118), 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) [2022-09-29 21:47:57,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:47:57,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:47:57,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:47:57,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:47:57,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-09-29 21:47:57,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:48:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:48:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:48:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:48:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:48:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-09-29 21:48:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-09-29 21:48:20,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-29 21:48:20,195 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:48:20,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:48:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1447337023, now seen corresponding path program 3 times [2022-09-29 21:48:20,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:48:20,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520932801] [2022-09-29 21:48:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:48:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:48:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:48:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 81309 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81309 trivial. 0 not checked. [2022-09-29 21:48:34,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:48:34,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520932801] [2022-09-29 21:48:34,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520932801] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:48:34,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:48:34,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-09-29 21:48:34,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086752200] [2022-09-29 21:48:34,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:48:34,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-09-29 21:48:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:48:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-09-29 21:48:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=3592, Unknown=0, NotChecked=0, Total=3782 [2022-09-29 21:48:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:48:34,804 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:48:34,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 16.06451612903226) internal successors, (996), 62 states have internal predecessors, (996), 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) [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-09-29 21:48:34,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:48:53,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:48:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-09-29 21:48:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 21:48:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-09-29 21:48:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-09-29 21:48:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-09-29 21:48:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 21:48:53,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-29 21:48:53,931 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:48:53,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:48:53,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1193943589, now seen corresponding path program 1 times [2022-09-29 21:48:53,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:48:53,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141604789] [2022-09-29 21:48:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:48:53,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:48:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat