/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_1w1r.line1454.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 15:32:25,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 15:32:25,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 15:32:25,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 15:32:25,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 15:32:25,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 15:32:25,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 15:32:25,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 15:32:25,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 15:32:25,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 15:32:25,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 15:32:25,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 15:32:25,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 15:32:25,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 15:32:25,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 15:32:25,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 15:32:25,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 15:32:25,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 15:32:25,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 15:32:25,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 15:32:25,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 15:32:25,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 15:32:25,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 15:32:25,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 15:32:25,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-03 15:32:25,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-03 15:32:25,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-03 15:32:25,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-03 15:32:25,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-03 15:32:25,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-03 15:32:25,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-03 15:32:25,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-03 15:32:25,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-03 15:32:25,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-03 15:32:25,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-03 15:32:25,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-03 15:32:25,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-03 15:32:25,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-03 15:32:25,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 15:32:25,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 15:32:25,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 15:32:25,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 15:32:25,871 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 15:32:25,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 15:32:25,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 15:32:25,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 15:32:25,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 15:32:25,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 15:32:25,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 15:32:25,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 15:32:25,874 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 15:32:25,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 15:32:25,875 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 15:32:25,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 15:32:25,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 15:32:25,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 15:32:25,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 15:32:25,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 15:32:25,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 15:32:25,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 15:32:25,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 15:32:25,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 15:32:25,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 15:32:25,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 15:32:25,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 15:32:25,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 15:32:25,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 15:32:25,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:32:25,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 15:32:25,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 15:32:25,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 15:32:25,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 15:32:25,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 15:32:25,878 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 15:32:25,878 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 15:32:25,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 15:32:25,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 15:32:25,879 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 15:32:25,879 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 15:32:25,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 15:32:25,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 15:32:26,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 15:32:26,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 15:32:26,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 15:32:26,137 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 15:32:26,138 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 15:32:26,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1454.bpl [2022-10-03 15:32:26,140 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1454.bpl' [2022-10-03 15:32:26,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 15:32:26,223 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 15:32:26,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 15:32:26,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 15:32:26,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 15:32:26,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 15:32:26,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 15:32:26,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 15:32:26,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 15:32:26,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/1) ... [2022-10-03 15:32:26,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:32:26,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:32:26,437 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) [2022-10-03 15:32:26,451 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 [2022-10-03 15:32:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 15:32:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 15:32:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 15:32:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 15:32:26,495 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 15:32:26,714 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 15:32:26,715 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 15:32:27,870 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 15:32:27,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 15:32:27,891 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 15:32:27,894 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:32:27 BoogieIcfgContainer [2022-10-03 15:32:27,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 15:32:27,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 15:32:27,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 15:32:27,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 15:32:27,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:32:26" (1/2) ... [2022-10-03 15:32:27,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c3db7e and model type divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:32:27, skipping insertion in model container [2022-10-03 15:32:27,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1454.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:32:27" (2/2) ... [2022-10-03 15:32:27,902 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1454.bpl [2022-10-03 15:32:27,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 15:32:27,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 15:32:27,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 15:32:27,918 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 15:32:28,057 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 15:32:28,110 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2022-10-03 15:32:28,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:32:28,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:32:28,115 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) [2022-10-03 15:32:28,124 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 [2022-10-03 15:32:28,154 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:32:28,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:32:28,173 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;@716b9f4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:32:28,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:32:28,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:32:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:32:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 428801181, now seen corresponding path program 1 times [2022-10-03 15:32:28,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:32:28,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131774225] [2022-10-03 15:32:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:32:28,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:32:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:32:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:32:29,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:32:29,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131774225] [2022-10-03 15:32:29,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131774225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:32:29,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:32:29,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 15:32:29,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755666195] [2022-10-03 15:32:29,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:32:29,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 15:32:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:32:29,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 15:32:29,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 15:32:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:29,285 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:32:29,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 316.0) internal successors, (632), 2 states have internal predecessors, (632), 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) [2022-10-03 15:32:29,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:29,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 15:32:29,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:32:29,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:32:29,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1106904502, now seen corresponding path program 1 times [2022-10-03 15:32:29,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:32:29,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947489115] [2022-10-03 15:32:29,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:32:29,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:32:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:32:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:32:30,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:32:30,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947489115] [2022-10-03 15:32:30,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947489115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:32:30,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:32:30,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-10-03 15:32:30,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533639764] [2022-10-03 15:32:30,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:32:30,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-03 15:32:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:32:30,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-03 15:32:30,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-10-03 15:32:30,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:30,622 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:32:30,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 43.625) internal successors, (698), 17 states have internal predecessors, (698), 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) [2022-10-03 15:32:30,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:30,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:32:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-03 15:32:32,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 15:32:32,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:32:32,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:32:32,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2139974037, now seen corresponding path program 1 times [2022-10-03 15:32:32,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:32:32,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968806238] [2022-10-03 15:32:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:32:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:32:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:32:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 143 proven. 41 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-03 15:32:33,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:32:33,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968806238] [2022-10-03 15:32:33,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968806238] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:32:33,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012865731] [2022-10-03 15:32:33,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:32:33,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:32:33,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:32:33,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:32:33,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 15:32:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:32:34,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 264 conjunts are in the unsatisfiable core [2022-10-03 15:32:34,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:32:35,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-03 15:32:36,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:32:37,024 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 15:32:37,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2022-10-03 15:32:37,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:32:37,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 15:32:37,042 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-10-03 15:32:42,701 INFO L356 Elim1Store]: treesize reduction 28, result has 61.6 percent of original size [2022-10-03 15:32:42,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 80 [2022-10-03 15:32:44,592 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 15:32:44,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 33 [2022-10-03 15:32:45,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-03 15:32:45,721 INFO L356 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-10-03 15:32:45,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 20 [2022-10-03 15:32:47,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:32:47,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20 [2022-10-03 15:32:47,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-03 15:32:47,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:32:47,990 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20 [2022-10-03 15:32:51,128 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 15:32:51,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 40 [2022-10-03 15:32:51,142 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-03 15:32:51,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 32 [2022-10-03 15:32:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:32:51,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-03 15:32:52,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-10-03 15:32:52,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 15:32:52,099 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:32:52,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 35 treesize of output 18 [2022-10-03 15:32:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:32:52,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:32:52,619 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))) (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-10-03 15:32:52,639 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-10-03 15:32:52,652 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-10-03 15:32:52,700 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))) (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-10-03 15:32:52,705 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-10-03 15:32:52,721 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_299 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_299) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_300 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_300) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-10-03 15:32:54,795 INFO L356 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2022-10-03 15:32:54,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 214 treesize of output 226 [2022-10-03 15:32:54,817 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:32:54,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 239 treesize of output 235 [2022-10-03 15:32:54,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 100 [2022-10-03 15:32:59,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-10-03 15:33:01,406 INFO L356 Elim1Store]: treesize reduction 34, result has 59.0 percent of original size [2022-10-03 15:33:01,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 136 [2022-10-03 15:33:01,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 15:33:01,436 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:33:01,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 100 [2022-10-03 15:33:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 69 not checked. [2022-10-03 15:33:03,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012865731] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:33:03,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:33:03,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 84, 81] total 173 [2022-10-03 15:33:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549922996] [2022-10-03 15:33:03,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:33:04,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2022-10-03 15:33:04,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:33:04,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2022-10-03 15:33:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=26694, Unknown=62, NotChecked=2010, Total=29756 [2022-10-03 15:33:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:04,012 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:33:04,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 16.809248554913296) internal successors, (2908), 173 states have internal predecessors, (2908), 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) [2022-10-03 15:33:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:04,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-03 15:33:04,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:13,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-03 15:33:13,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:33:13,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-03 15:33:13,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-03 15:33:13,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:33:13,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:33:13,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1835025362, now seen corresponding path program 1 times [2022-10-03 15:33:13,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:33:13,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422965757] [2022-10-03 15:33:13,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:33:13,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:33:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:33:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 907 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-10-03 15:33:14,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:33:14,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422965757] [2022-10-03 15:33:14,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422965757] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:33:14,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:33:14,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-03 15:33:14,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054643485] [2022-10-03 15:33:14,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:33:14,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-03 15:33:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:33:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-03 15:33:14,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-10-03 15:33:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:14,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:33:14,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 57.095238095238095) internal successors, (1199), 21 states have internal predecessors, (1199), 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) [2022-10-03 15:33:14,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:14,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-10-03 15:33:14,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:33:14,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:33:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:33:18,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:33:18,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-03 15:33:18,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:33:18,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:33:18,169 INFO L85 PathProgramCache]: Analyzing trace with hash -913162949, now seen corresponding path program 1 times [2022-10-03 15:33:18,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:33:18,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812444769] [2022-10-03 15:33:18,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:33:18,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:33:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:33:19,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 143 proven. 822 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2022-10-03 15:33:19,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:33:19,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812444769] [2022-10-03 15:33:19,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812444769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:33:19,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942046685] [2022-10-03 15:33:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:33:19,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:33:19,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:33:19,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:33:19,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-03 15:33:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:33:20,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 4358 conjuncts, 167 conjunts are in the unsatisfiable core [2022-10-03 15:33:20,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:33:20,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:33:20,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:33:20,370 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 15:33:20,371 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 [2022-10-03 15:33:20,424 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 [2022-10-03 15:33:20,989 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 15:33:20,989 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 [2022-10-03 15:33:21,031 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 [2022-10-03 15:33:23,144 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:33:23,144 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 21 treesize of output 25 [2022-10-03 15:33:23,880 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 15:33:23,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2022-10-03 15:33:23,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 treesize of output 29 [2022-10-03 15:33:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:33:24,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2022-10-03 15:33:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:33:24,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 13 [2022-10-03 15:33:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-10-03 15:33:24,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 15:33:24,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942046685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:33:24,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 15:33:24,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [14] total 66 [2022-10-03 15:33:24,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730829595] [2022-10-03 15:33:24,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:33:24,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-03 15:33:24,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:33:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-03 15:33:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=4036, Unknown=0, NotChecked=0, Total=4290 [2022-10-03 15:33:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:24,624 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:33:24,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 24.0188679245283) internal successors, (1273), 53 states have internal predecessors, (1273), 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) [2022-10-03 15:33:24,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:33:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:33:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:33:24,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:33:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:33:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-03 15:33:41,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-10-03 15:33:41,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-03 15:33:41,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:33:41,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:33:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:33:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash -728550697, now seen corresponding path program 1 times [2022-10-03 15:33:41,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:33:41,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768851235] [2022-10-03 15:33:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:33:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:33:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:33:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 141 proven. 311 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-03 15:33:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:33:42,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768851235] [2022-10-03 15:33:42,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768851235] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:33:42,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659579341] [2022-10-03 15:33:42,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:33:42,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:33:42,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:33:42,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:33:42,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-03 15:33:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:33:43,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-03 15:33:43,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:33:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 141 proven. 311 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-03 15:33:44,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:33:45,556 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:33:45,556 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 17 treesize of output 21 [2022-10-03 15:33:46,908 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 452 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-03 15:33:46,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659579341] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:33:46,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:33:46,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 23 [2022-10-03 15:33:46,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169438762] [2022-10-03 15:33:46,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:33:46,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-03 15:33:46,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:33:46,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-03 15:33:46,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-10-03 15:33:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:46,914 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:33:46,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 61.78260869565217) internal successors, (1421), 24 states have internal predecessors, (1421), 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) [2022-10-03 15:33:46,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:33:46,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-10-03 15:33:46,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-10-03 15:33:46,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2022-10-03 15:33:46,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-10-03 15:33:46,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.